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Article

Study on Effect of Defective Ground Structure on Hybrid Microstrip Array Antenna

1Department. of Microwave Lab, PG Studies and Research in Applied Electronics, Gulbarga University, Karnataka, INDIA


Wireless and Mobile Technologies. 2013, 1(1), 1-5
DOI: 10.12691/wmt-1-1-1
Copyright © 2013 Science and Education Publishing

Cite this paper:
S L Mallikarjun, P M Hadalgi. Study on Effect of Defective Ground Structure on Hybrid Microstrip Array Antenna. Wireless and Mobile Technologies. 2013; 1(1):1-5. doi: 10.12691/wmt-1-1-1.

Correspondence to: S L Mallikarjun, Department. of Microwave Lab, PG Studies and Research in Applied Electronics, Gulbarga University, Karnataka, INDIA. Email:

Abstract

This paper presents a novel study on effect of rectangular shape defective ground structure (DGS) implemented on two, four and eight element hybrid microstrip array antenna. The proposed antennas are designed using low cost glass epoxy material. The bandwidth and radiation performance of the antenna is studied and found that as the elements of the antenna are increased, bandwidth also increases by retaining almost the same radiation pattern and gain. Experimentally measured results and design concepts are presented and discussed. These antennas may find application in modern communication system, in radar systems like SAR, monopulse tracking radar and C, X and Ku band microwave applications.

Keywords

References

[1]  K. L. Wong, “Compact and broadband microstrip antennas”, John Wiley & Sons Inc., New York, 2003.
 
[2]  Garg, R., P. Bhartia, I. Bahl and A. Ittipibon, Microstrip Antenna Design Handbook, Artech House, Boston, London, 2001.
 
[3]  S L Mallikarjun, R G Madhuri and P M Hadali, “Effect of rectangular DGS on rectangular microstrip patch array antenna”, Int. Symp. on Microwave and Optical Tech. New Delhi, pp. 257-260, 2009.
 
[4]  S. L. Mallikarjun, P. M. Hadalgi, R. G. Madhuri, and S. A. Malipatil, “Design and Development of Hybrid Microstrip Array Antenna”, The Icfai Journal of Science and Technology, Vol. 5, No. 4, pp.53-62, Dec. 2009.
 
[5]  Constantine Balanies A, Antenna Theory Analysis and Design (John Wiley & Sons Inc.., New York) 1982.
 
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[6]  S. Maci and G. Biffi Gentili, “Dual-frequency patch antennas”, IEEE, Trans. Antennas Propagat. Magz., vol. 39, pp. 13-19, Dec. 1997.
 
[7]  X. Qu, S. S. Zhong and Y. M. Zhang, “Dual band dual polarized microstrip antenna array for SAR applications”, Elect. Lett. vol 42, no. 24, pp. 1376-1377, Nov. 2006.
 
[8]  Naveed Ahsan and Jahangir Khan Kayani, “Design of an X-band microstrip monopulse antenna for monopulse tracking radar”, 2nd Int. Bhurban Conf. on Applied Sci and Tech., Bhurban, Pakistan, pp. 313-320, 16-21, 2003.
 
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Article

Upcoming Standards in Wireless Local Area Networks

1Department of Electronics & Communication Engineering, RCC-Institute of Information Technology, India


Wireless and Mobile Technologies. 2013, 1(1), 6-11
DOI: 10.12691/wmt-1-1-2
Copyright © 2013 Science and Education Publishing

Cite this paper:
Sourangsu Banerji. Upcoming Standards in Wireless Local Area Networks. Wireless and Mobile Technologies. 2013; 1(1):6-11. doi: 10.12691/wmt-1-1-2.

Correspondence to: Sourangsu Banerji, Department of Electronics & Communication Engineering, RCC-Institute of Information Technology, India. Email: sourangsu.banerji@gmail.com

Abstract

In this paper, we discuss some of the upcoming standards of IEEE 802.11 i.e. Wireless Local Area Networks. The WLANs nowadays provide unlimited broadband usage to users that have been previously offered simply to wireline users within a limited range. The newest and the emerging standards fix technology issues or add functionality to the existing IEEE 802.11 standards and will be expected to overcome many of the current standing problems with IEEE 802.11.

Keywords

References

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[2]  IEEE 802.11b-1999, IEEE Standard for Local and Metropolitan Area Networks Specific Requirements – Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications High Speed Physical Layer Extension in the 2.4 GHz Band, September 16, 1999.
 
[3]  IEEE 802.11a-1999, IEEE Standard for Local and Metropolitan Area Networks Specific Requirements – Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications High Speed Physical Layer in the 5 GHz Band, 1999.
 
[4]  IEEE 802.11g-2003, IEEE Standard for Local and Metropolitan Area Networks Specific Requirements – Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 4: Further Higher Data Rate Extension in the 2.4 GHz Band, June 27, 2003.
 
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[7]  D. Vassis, G. Kormentzas, A. Rouskas, I. Maglogiannis, The IEEE 802.11g standard for high data rate WLANs, IEEE Network 19 (3) (2005) 21-26.
 
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[23]  802.11k-IEEE Standard for Information technology-Local and metropolitan area networks-Specific requirements-Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 1: Radio Resource Measurement of Wireless LANs, 2008.
 
[24]  Rabaey, Jan, et al. "Connectivity brokerage-enabling seamless cooperation in wireless networks." White Paper), Sept (2010).
 
[25]  Y. Xiao, “IEEE 802.11n: enhancements for higher throughput in wireless LANs”, IEEE Wireless Communications 12 (6) (2005) 82-91.
 
[26]  J.M. Gilbert, W. Choi, Q. Sun, MIMO technology for advanced wireless local area networks, in: 42nd Annual Conference on Design Automation 2005 (DAC ’05), Anaheim, CA, USA, 2005, pp. 413-415.
 
[27]  Skordoulis, Dionysios, et al. "IEEE 802.11 n MAC frame aggregation mechanisms for next-generation high-throughput WLANs." Wireless Communications, IEEE 15.1 (2008): 40-47.
 
[28]  Perahia, Eldad. "IEEE 802.11 n development: history, process, and technology." Communications Magazine, IEEE 46.7 (2008): 48-55.
 
[29]  Jiang, Daniel, and Luca Delgrossi. "IEEE 802.11 p: Towards an international standard for wireless access in vehicular environments." Vehicular Technology Conference, 2008. VTC Spring 2008. IEEE. IEEE, 2008.
 
[30]  Wellens, Matthias, Burkhard Westphal, and Petri Mahonen. "Performance evaluation of IEEE 802.11-based WLANs in vehicular scenarios." Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th. IEEE, 2007.
 
[31]  Hartenstein, Hannes, and Kenneth P. Laberteaux. "A tutorial survey on vehicular ad hoc networks." Communications Magazine, IEEE 46.6 (2008): 164-171.
 
[32]  Bangolae, Sangeetha, Carol Bell, and Emily Qi. "Performance study of fast BSS transition using IEEE 802.11 r." Proceedings of the 2006 international conference on Wireless communications and mobile computing. ACM, 2006.
 
[33]  Wang, Jianfeng, Monisha Ghosh, and Kiran hallapali. "Emerging cognitive radio applications: A survey." Communications Magazine, IEEE 49.3 (2011): 74-81.
 
[34]  Carrano, Ricardo C., et al. "IEEE 802.11s multihop MAC: A tutorial."Communications Surveys & Tutorials, IEEE 13.1 (2011): 52-67.
 
[35]  P. Djukic, S. Valaee, “802.16 MCF for 802.11a based mesh networks: a case for standards re-use” in: 23rd IEEE Biennial Symposium on Communications 2006, Kingston, Ont., Canada, 2006, pp. 186-189.
 
[36]  D. Molta, “Primer: mesh configurations applications make a mesh of your WLAN”, Network Computing 11 (17) (2005) 67-71.
 
[37]  D. Maniezzo, G. Villa, M. Gerla, “A smart MAC-routing protocol for WLAN mesh networks”, UCLA-CSD Technical Report number 040032, 2004.
 
[38]  Stankiewicz, Rafal, Piotr Cholda, and Andrzej Jajszczyk. "QoX: what is it really?." Communications Magazine, IEEE 49.4 (2011): 148-158.
 
[39]  Khan, Bilal, and Jong-Suk Ahn. "A performance model for the effect of interferences among the collocated heterogeneous wireless networks."Advanced Communication Technology (ICACT), 2013 15th International Conference on. IEEE, 2013.
 
[40]  Kim, Eunsun, and Yongho Seok. "Method for Operating a Station in a White Space, and Apparatus for Same." U.S. Patent No. 20,130,109,403. 2 May 2013.
 
[41]  Perahia, Eldad, et al. "IEEE 802.11 ad: Defining the next generation multi-Gbps Wi-Fi." Consumer Communications and Networking Conference (CCNC), 2010 7th IEEE. IEEE, 2010.
 
[42]  Cordeiro, Carlos, Dmitry Akhmetov, and Minyoung Park. "Ieee 802.11 ad: introduction and performance evaluation of the first multi-gbps wifi technology."Proceedings of the 2010 ACM international workshop on mmWave communications: from circuits to networks. ACM, 2010.
 
[43]  Zhu, Hua, et al. "Distributed Admission Control for IEEE 802.11 Ad Hoc Networks." (2013).
 
[44]  Zhao, Fang, et al. "Comparison of analytical and measured performance results on network coding in IEEE 802.11 ad-hoc networks." Network Coding (NetCod), 2012 International Symposium on. IEEE, 2012.
 
[45]  Banerji, Sourangsu and Rahul SinghaChowdhury.. "On IEEE 802.11: Wireless LAN Technology." arXiv preprint arXiv:1307.2661 (2013).
 
[46]  http://www.radio-electronics.com/info/wireless/wi-fi/ieee-802-11ad-microwave.php
 
[47]  Ong, Eng Hwee, et al. "IEEE 802.11 ac: Enhancements for very high throughput WLANs." Personal Indoor and Mobile Radio Communications (PIMRC), 2011 IEEE 22nd International Symposium on. IEEE, 2011.
 
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[49]  Ong, Eng Hwee. "Performance analysis of fast initial link setup for IEEE 802.11ai WLANs." Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on. IEEE, 2012.
 
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Article

Performance and Capacity Evaluation for Mobile WiMAX IEEE 802.16m Standard

1Department of Electronics and Communication Eng, Faculty of Engineering, Mansoura University, Egypt


Wireless and Mobile Technologies. 2013, 1(1), 12-19
DOI: 10.12691/wmt-1-1-3
Copyright © 2013 Science and Education Publishing

Cite this paper:
Hala B. Nafea, Fayez W. Zaki, Hossam E. Moustafa. Performance and Capacity Evaluation for Mobile WiMAX IEEE 802.16m Standard. Wireless and Mobile Technologies. 2013; 1(1):12-19. doi: 10.12691/wmt-1-1-3.

Correspondence to: Hala B. Nafea, Department of Electronics and Communication Eng, Faculty of Engineering, Mansoura University, Egypt. Email: eg_hala2007@yahoo.com

Abstract

The next generation of mobile WiMAX is IEEE 802.16m which amends the IEEE 802.16e specification to provide an advanced air interface for operation in licensed bands. It is a recommended candidate for 4G. For the next generation mobile networks, it is important to consider increasing peak, sustained data rates, spectral efficiencies, system capacity, cell coverage, and providing QoS. In this paper the capacity estimation for both downlink and uplink direction in IEEE 802.16m, is presented. Moreover, bandwidth and minimum demand for different distribution modeling and different classes of services, VoIP, Video Conference, Streaming Media, Web browsing, Multiplayer interactive gaming, and Media Content downloading at channel bandwidth of 20MHZ. Matlab simulation programs are also considered.

Keywords

References

[1]  Garber, L, “Mobile WiMax: The Next Wireless Battle Ground”, IEEE Computer Society, vol. 41, No. 6, p16-18, Jun. 2008.
 
[2]  WiMax Forum, “WiMax System Evaluation Methodology V2.1,” Jul. 2008, p 230(http://www.wimaxforum.org/technology/documents/ /technical).
 
[3]  Toe, K.H., Tao, Z. and Zhang, J.”The Mobile Broadband WiMax standard [Standards in Nutshell]”, IEEE Signal Processing Magazine, p144-148, Jul. 2007.
 
[4]  Etemad, K. and Lai, M., “Mobile WiMax technology update [Guest Editorial], IEEE Communications Magazine, vol. 46, p 26-28, 2008.
 
[5]  Etemad, k. Intel Corporation, "Overview of Mobile WiMax Technology and Evolution" WiMax: A Technology Update IEEE Communications Magazine, vol. 46, p31-40, Oct. 2008.
 
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[6]  Hongfei Du, Jiangchuan Liu, Jie Liang, “Downlink scheduling for multimedia Multicast/broadcast over mobile WiMAX: connection- oriented multistate adaptation.”,vol.16, Issue 4, p72-79, 2009.
 
[7]  Jain R., Chakchai So-In, and Al Tamimi, A.-K.,”System-level modeling of IEEE 802.16E mobile WiMax networks: Key issues”, Wireless Communications, IEEE, vol. 15, Issue 5, p73-79, 2008.
 
[8]  Fan, W., Ghosh, A., Sankaran C., Fleming, P., Hsieh, F., and Benes, S., “Mobile WiMax systems: performance and evolution", Communications Magazine, IEEE, vol. 46, Issue 10, p41-49, 2008.
 
[9]  Kim, W, “Mobile WiMAX, the leader of the mobile Internet [WiMAX Report]”, Communications Magazine, IEEE, vol. 47, Issue 6, p10-12, 2009.
 
[10]  Chakchai, So-In., Jain, R., and Tamimi, A.-k, “Scheduling in IEEE 802.16e mobile WiMax networks: key issues and a survey.”, IEEE Journal On Selected Areas In Communications, vol. 27, Issue 2, p156-171,Feb. 2009.
 
[11]  Papapanagiotou I., Toumpakaris D, Jungwon Lee, Devetsikiotis M., “A survey on next generation mobile WiMAX networks: objectives, features and technical challenges.”, Communications Surveys & Tutorial, IEEE, vol. 11, Issue 4, p3-18, 2009.
 
[12]  Doug, G., "Mobile WiMax – part I: A technical overview and performance evaluation," WiMax Forum, 2006. http://www.wimaxforum.org/news/downloads/Mobile_WiMAX_Part1_Overview_and_Performance.pdf.
 
[13]  Ahmadzadeh, A. M. "Capacity and Cell-Range Estimation for Multitraffic Users in Mobile WiMax" MSc. Dept. of Electrical ,Communication and Signal Processing Engineering , University College of Borås School of Engineering Sept. 2008.
 
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Article

Harnessing Telecommunications Revolution in Nigeria: A Case Study

1Department of Basic Sciences, Benson Idahosa University, Benin City, Benin, Nigeria


Wireless and Mobile Technologies. 2013, 1(1), 20-24
DOI: 10.12691/wmt-1-1-4
Copyright © 2013 Science and Education Publishing

Cite this paper:
Joseph Isabona. Harnessing Telecommunications Revolution in Nigeria: A Case Study. Wireless and Mobile Technologies. 2013; 1(1):20-24. doi: 10.12691/wmt-1-1-4.

Correspondence to: Joseph  Isabona, Department of Basic Sciences, Benson Idahosa University, Benin City, Benin, Nigeria. Email: josabone@yahoo.com

Abstract

In recent times telecommunication revolution especially the use of mobile phones is transforming the Nigeria society in many ways. The socio-economic and health impact are enormous. As the spectrum of mobile phone usage increases, opinions differ among users on the impact of this revolution in Nigeria. This paper therefore set to investigate the impact of cellular phone technology on health care services in Nigeria. In doing this, the study elicited data through questionnaires from 300 respondents who were randomly and positively selected. Findings show that Mobile phone communication offers an effective means of bringing good healthcare services to the citizenry. In general, the most important steps that different stakeholders can take to make the most of the Telecommunication revolution in Africa are also revealed.

Keywords

References

[1]  Ogaboh, A. A. M; Ikoh, M, Ushie, E.M. and Bassey, A. O, “Telecommunications Revolution: Implications on criminality and Family Crisis in the South-South States of Nigeria”. Computer and information Science Journal, Vol.3, No, 1. pp. 42-51, February 2010.
 
[2]  Offurum, S.C, “Communication Revolution, The Leader”, 1, pp. 19, May, 2009.
 
[3]  Ndukwe, E, “Three years of GSM Revolution in Nigeria”, [Online] Available: http//www.ncc.gov.ng/speeches_presentations/Evc’s(August 20, 2005).
 
[4]  Samuel, K. J, “Can mobile telecommunication reduce intra-city work travel? Empirical evidence from a third world city. Ibadan Journal of the Social Sciences, 6(1), 45-54, 2008.
 
[5]  Nayak, S. K, Thorat, S.B and Kalyankar, N.V, ‘‘Reaching the unreached A Role of ICT in sustainable Rural development’’. IJCSIS) International Journal of Computer Science and Information Security, Vol. 7, No. 1, pp 220-224, 2010.
 
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[6]  Braa, J, and Nermunkh, C, ‘‘Health Information System in Mongolia: a difficult process of change’’. In C. Avgeuru & G. Walsham (Eds.), Information Technology in Context, perspectives from developing countries, UK: Ashgate, 2000.
 
[7]  Kalil, T, ‘‘Harnessing the Mobile Revolution’’, NewPolicyInstitute.org. 2008.
 
[8]  www.twitter.com/ericssonpress: Traffic and Market Data Report, November 2011.
 
[9]  http://www.itu.int/ITUD/ict/publications.
 
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Article

Electrically Small Rectangular Patch Antenna with Slot for MIMO Applications

1Extc. Dept.,Shivajirao S. Jondhale College of Engineering & Technology Asangaon (Thane), India

2P. G.Dept., MBES College of Engineering, Ambajogai, India


Wireless and Mobile Technologies. 2013, 1(1), 25-28
DOI: 10.12691/wmt-1-1-5
Copyright © 2013 Science and Education Publishing

Cite this paper:
Mahesh C. Bhad, Veeresh G. Kasabegoudar, Madhuri P. Rodge. Electrically Small Rectangular Patch Antenna with Slot for MIMO Applications. Wireless and Mobile Technologies. 2013; 1(1):25-28. doi: 10.12691/wmt-1-1-5.

Correspondence to: Mahesh  C. Bhad, Extc. Dept.,Shivajirao S. Jondhale College of Engineering & Technology Asangaon (Thane), India. Email: maheshbhad@yahoo.com

Abstract

This article addresses the design and optimization of electrically small antenna suitable for MIMO (multiple input multiple output) applications. A MIMO transmission is one of the promising antenna technologies used for wireless communication. When the transceiver uses more than one antenna, the antennas must be placed at least half of the carrier wavelength apart, in order to transmit/receive uncorrelated signals. Such antenna systems are required to fit within the hand-held (mobile) terminal which occupies a small size (typically not more than 60x100 mm2). Since antenna integration and miniaturization are two major challenges in MIMO systems, we propose a slot loaded electrically small rectangular patch antenna that operates in the 0.8GHz to 2.6GHz band which is suitable for most of the commercial wireless applications. The proposed antenna has an operating frequency of 1.7GHz with impedance bandwidth of 105%, and the total size of 20x40 mm2. Measured results agree with the simulated values.

Keywords

References

[1]  Y. M. Chen, C. C. Huang, and W.S. Chen, “An electrically small impedance-matched microstrip antenna design,” Antenna and Propgat. Int. Sump.,vol. 4, pp. 38-41, 2002.
 
[2]  G. Breed, “Basic principles of electrically small antennas,” J. of High Freq. Electronics, pp. 50-53, 2007.
 
[3]  A. Jamil, M. Z. Yousuf, and N. Yahya, “An electrically small meander line antenna for wireless applications,” IEEE Asia Pacific Con. on Circuits and Sys., pp. 72-75, 2010.
 
[4]  K. K. Chandana, et. al., “Miniaturized circular antennas for MIMO communication systems – Pattern diversity,” Int. ITG Workshop on Smart Antennas, pp. 331-334, 2010.
 
[5]  A. Singh, et. al., “Empirical Relation for Designing the Meander Line Antenna,” IEEE International conference on recent advances in Microwave Theory and Applications, pp. 695-697, Jaipur, India, 2008.
 
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[6]  G. Wang, et. al., “Coaxial-Fed Double-Sided Bow-Tie Antenna for GSM/CDMA and 3G/WLAN Communications,” IEEE Transactions on Antennas and Propagation, vol. 56, no. 8, pp. 2739-2742, 2008.
 
[7]  H. K. Kan and R. B. Waterhouse, “Shorted spiral-like printed antennas,” IEEE Transactions on Antennas and Propagation, vol. 50, no. 3, pp. 396- 397, 2002.
 
[8]  S.S. Mohammad et. al., “Design and fabrication of a dual electrically small MIMO antenna system for 4G terminals,” Proceedings of the 6th German Conf., pp. 14-16, 2011.
 
[9]  M. C. Bhad and V. G. Kasabegoudar , “Slot loaded electrically small rectangular patch antenna for MIMO applications,” Int. J. Advances in Engg. & Tech. (IJAET), vol. 4, no. 2, pp. 97-102, 2012.
 
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Article

Penetration Loss of Walls and Data Rate of IEEE802.16m WiMAX including Adaptive Modulation and Coding (AMC)

1Department of Electronics and Communications Eng. Faculty of Engineering, Mansoura University, Egypt


Wireless and Mobile Technologies. 2013, 1(1), 29-36
DOI: 10.12691/wmt-1-1-6
Copyright © 2013 Science and Education Publishing

Cite this paper:
Hala B. Nafea, Fayez W. Zaki, Hossam E. S. Moustafa. Penetration Loss of Walls and Data Rate of IEEE802.16m WiMAX including Adaptive Modulation and Coding (AMC). Wireless and Mobile Technologies. 2013; 1(1):29-36. doi: 10.12691/wmt-1-1-6.

Correspondence to: Hala  B. Nafea, Department of Electronics and Communications Eng. Faculty of Engineering, Mansoura University, Egypt. Email: eg_hala2007@yahoo.com

Abstract

The study reported here includes propagation analysis and coverage as well as the available downlink (DL) throughput of OFDMA-based IEEE802.16m WiMAX system as a function of distance to the Base Station (BS) for a number of outdoor and indoor propagation scenarios. Moreover, Walls penetration loss is also considered. Adaptive modulation and Coding (AMC) schemes will be assumed in the present study for 5 MHz and 20 MHz channel bandwidth.

Keywords

References

[1]  Garber, L, “Mobile WiMAX: The Next Wireless Battle Ground”, IEEE Computer Society, Jun. 2008, vol. 41, No. 6, p p16-18.
 
[2]  “WiMAX Forum Mobile System Profile, Release 1.0 approved specification, Revision 1.4.0”, WiMAX Forum, 2007.
 
[3]  H. Yaghoobi, “Scalalable OFDMA Physical Layer in IEEE802.16Wireless MAN”, Intel Technology Journal, August 2004, Vol 08, pp. 201-212.
 
[4]  J. G. Andrews, A. Ghosh, R. Muhamed, “Fundamentals of WiMAX”, Prentice Hall, , 2007.).
 
[5]  IEEE Computer Society & IEEE Microwave Theory and Techniques Society, “IEEE Std 802.16e™-2005: IEEE Standard for Local and metropolitan area networks – Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems; Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands”, IEEE, 2005.
 
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[6]  COST 231, Digital mobile radio towards future generation systems, Final Report, COST Telecom Secretariat, European Commission, , 1999.
 
[7]  M. Hata, “Empirical formula for propagation loss in land mobile radio services”, IEEE Transactions on Vehicular Technology, September 1981, vol. 29, pp. 317-325.
 
[8]  L. M. Correia (Ed.), “Wireless Flexible Personalized Communications”, Wiley, , 2001.
 
[9]  P. Nobles, “A comparison of indoor pathloss measurements at 2 GHz, 5 GHz, 17 GHz and 60 GHz”, COST 259, TD (99)100, Leidschendam, The Netherlands, September 1999.
 
[10]  Doug, G., “Mobile WiMAX – part I: A technical overview and performance evaluation,” WiMAX Forum, 2006.
 
[11]  Ahmadzadeh, A. M. “Capacity and Cell-Range Estimation for Multitraffic Users in Mobile WiMAX” MSc. Dept. of Electrical ,Communication and Signal Processing Engineering , University College of Borås School of Engineering Sept. 2008.
 
[12]  Koon Hoon Teo., Zhifeng Tao., and Jinyun Zrang. “The Broadband Standard” IEEE Signal Processing Magazine, September 2007.
 
[13]  Hala. B. Nafea, Fayez W. Zaki, “PERFORMANCE OF IEEE 802.16m WIMAX USING ADAPTIVE MODULATION AND CODING” The Mediterranean Journal of Electronics and Communications, Vol. 7, No. 2, 2011.
 
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Article

Cb-SDA: Cluster-based Secure Data Aggregation for Private Data in WSN

1CSE department, University Institute of Engineering and Technology, kurukshetra University, Kurukshetra, India

2ECE department, University Institute of Engineering and Technology, kurukshetra University, Kurukshetra, India


Wireless and Mobile Technologies. 2013, 1(1), 37-41
DOI: 10.12691/wmt-1-1-7
Copyright © 2013 Science and Education Publishing

Cite this paper:
Ajay Jangra, Priyanks, Richa. Cb-SDA: Cluster-based Secure Data Aggregation for Private Data in WSN. Wireless and Mobile Technologies. 2013; 1(1):37-41. doi: 10.12691/wmt-1-1-7.

Correspondence to: Ajay  Jangra, CSE department, University Institute of Engineering and Technology, kurukshetra University, Kurukshetra, India. Email: er_jangra@yahoo.co.in

Abstract

As wireless senor network (WSN) has broad range application that needs privacy of sensed data while they transmit from source to base station. Providing robust and reliable data aggregation scheme with securing sampled data is a challenging problem in WSN. This paper discusses about secure data aggregation and proposed the new secure cluster based aggregation of private data scheme using the LEACH protocol. The proposed scheme (Cb-SDA) is based on the additive property of complex number to aggregate the sensor data in order to provide the privacy during their transmission over the base station and provide better security for wireless sensor network routing with efficient performance in terms of energy consumption, throughput, delay, bandwidth utilization, jitter etc. Simulation study evaluates the performance of proposed scheme and calculates aggregation privacy, communication overhead and accuracy in terms of throughput and compare to existing approach.

Keywords

References

[1]  Dorottya Vass, Attila Vidacs, “Distributed Data Aggregation with Geographical Routing in Wireless Sensor Networks”, Pervasive Services, IEEE International Conference on July 2007.
 
[2]  Jukka Kohonen, “Data Gathering in Sensor Networks”, Helsinki Institute for Information Technology, Finland. Nov 2004.
 
[3]  Gregory Hartl, Baochun Li, “Loss Inference in Wireless Sensor Networks Based on Data Aggregation”, IPSN 2004.
 
[4]  Zhenzhen Ye, Alhussein A. Abouzeid and Jing Ai, “Optimal Policies for Distributed Data Aggregation in Wireless Sensor Networks”, Draft Infocom2007 Paper.
 
[5]  Bhaskar Krishnamachari, Deborah Estrin and Stephen Wicker, “The Impact of DataAggregation in Wireless Sensor Networks”, Proceedings of the 22nd International Conferenceon Distributed Computing Systems, 2002.
 
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[6]  Kai-Wei Fan, Sha Liu, and PrasunSinha, “Structure-free Data Aggregation in SensorNetworks”, IEEE Transactions on Mobile Computing, 2007.
 
[7]  Yingpeng Sang, Hong Shen, Yasushi Inoguchi, Yasuo Tan and Naixue Xiong, “Secure DataAggregation in Wireless Sensor Networks: A Survey”, Seventh International Conference onParallel and Distributed Computing, Applications and Technologies, 2006.
 
[8]  Wenbo He, Xue Liu, Hoang Nguyen, Klara Nahrstedt and Tarek Abdelzaher, “PDA: Privacy preserving Data Aggregation in Wireless Sensor Networks”, 26th IEEE International Conference on Computer Communications. IEEE INFOCOM 2007.
 
[9]  Shih-I Huang and Shiuhpyng Shieh, “SEA: Secure Encrypted-Data Aggregation in Mobile Wireless Sensor Networks”, International Conference on Computational Intelligence and Security 2007.
 
[10]  Prakash G L, S H Manjula, K R Venugopal and L M Patnaik, “Secure Data Aggregation Using Clusters in Sensor Networks”, International Journal of Wireless Networks and Communications, Volume 1, Number 1 (2009), pp. 93-101.
 
[11]  V. Bhoopathy, R.M.S parvathi ”Energy Efficient Secure Data Aggregation protocol for Wireless Sensor Network” European journal of scientific research, Vol.50 No. 1(2011), pp 48-58.
 
[12]  S. Madden, M. Franklin, J. Hellerstein, “TAG: a Tiny AGgregation Servicefor Adhoc Sensor Networks,” in in Proc. of the 33rd InternationalConference on OSDI, December 2002.
 
[13]  N. Alon, R.M. Karp, D. Peleg, and D. West, “A Graph Theoretic Game and Its Application to the K-Server Problem,” in SIAM J. Computing, vol. 24,1995.
 
[14]  Ajay Jangra, Richa, Swati, Rajesh Verma, “Vulnerability and security analysis of wireless sensor networks” Indian Journal of Applied Research and Engineering, 4 January, 2011 in IJARE.
 
[15]  ArijitUkil, “Privacy Preserving Data Aggregation in Wireless Sensor Networks” IEEE Sixth International Conference on Wireless and Mobile Communications Sixth International Conference on Wireless and Mobile Communications Sixth International Conference on Wireless and Mobile Communications, 2010.
 
[16]  Julia Albath, Sanjay Madria “Secure Hierarchical Data Aggregation in Wireless Sensor Networks” WCNC 2009 IEEE.
 
[17]  JaydipSen, “A Robust and Secure Aggregation Protocol for Wireless Sensor Networks” 2011, sixth IEEE International Symposium on electronic design, test and application.
 
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Article

An Improved Compact & Multiband Fractal Antenna Using the Koch Curve Geometry

1Deparment of ELTCE, VSSUT, Burla, Odisha, India

2BIT, Durg, Chhatisgadh, India


Wireless and Mobile Technologies. 2014, 2(1), 1-6
DOI: 10.12691/wmt-2-1-1
Copyright © 2014 Science and Education Publishing

Cite this paper:
Manas Ranjan Jena, B.B. Mangaraj, Rajiv Pathak. An Improved Compact & Multiband Fractal Antenna Using the Koch Curve Geometry. Wireless and Mobile Technologies. 2014; 2(1):1-6. doi: 10.12691/wmt-2-1-1.

Correspondence to: Manas  Ranjan Jena, Deparment of ELTCE, VSSUT, Burla, Odisha, India. Email: manas.synergy@gmail.com

Abstract

In this paper, we have achieved an compact & multiband fractal antenna using a Koch curve geometry. The simulation of the proposed antenna is done by CST Microwave Studio EM simulation software. The proposed Koch curve fractal antenna proves that it is capable to create multiband frequencies. The proposed fractal antenna is designed on FR-4 substrate with ℇr= 4.4. The antenna is fed with the probe feed method. We got two resonant frequencies like 32.84GHz & 34.28GHz which shows multiband characteristics. Simulated results shows that the return loss is better than 15 dB, the VSWR is less than 1.3, the directivity is greater than 6dBi & the gain is more than 6dB in each band. So this fractal antenna can be suitable for the radio astronomy & space research applications.

Keywords

References

[1]  Balanis, Constantine, “Antenna theory-Analysis and Design”, John Wiley & Sons Ltd, Reprinted 2008.
 
[2]  B. B. Mandelbrot, “The Fractal Geometry of Nature” San Francisco, CA: Freeman, 1983.
 
[3]  N. Cohen, “Fractal Antenna Application In Wireless Telecommunications” Proceedings of Electronics Industries Forum of New England, 1997, pp. 43-49.
 
[4]  R.M. Crownover, “Introduction to Fractals and Chaos, Boston”, MA Jones & Bartlett, 1995.
 
[5]  D. H. Werner, P. L. Werner, and K. H. Church, “Genetically engineered multi-band fractal antennas,Electron. Lett., vol. 37, no. 19, pp. 1150-1151, Sep. 2001.
 
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[6]  B. Manimegalai, S. Raju, & V. Abhaikumar, “A multi fractal cantor antenna for multiband wireless applications,” IEEE Antennas Wireless Propag. Lett., vol. 8, pp. 359-362, 2009.
 
[7]  D. H. Werner and S. Ganguly, “An overview of fractal antenna engineering research,” IEEE Antennas Propag. Mag., vol. 45, no. 1, pp. 38-57, Feb. 2003.
 
[8]  K. J. Vinoy, “Fractal Shaped Antenna Elements for Wide and Multi-Band Wireless Applications” Thesis, Pennsylvania, Aug. 2002.
 
[9]  Best S.R. “The Effectiveness of Space Filling Fractal Geometry in Lowering Resonant Frequency”, Antennas & Propagation Letters, Vol. 1, (2002), 112-115.
 
[10]  X. Yang, J. Chiochetti, D. Papadopoulos, and L. Susman, “Fractal antenna elements and arrays,” Appl. Microw. Wireless, vol. 5, no. 11, pp. 34-46, May 1999.
 
[11]  Puente, C., Romeu, J., and Cardama, A. (2000). “The Koch Monopo le: A Small Fractal Antenna”. IEEE Transactions On Antennas And Propagation 48 (11).
 
[12]  Best, S.R. (2002). “On the resonant properties of the Koch fractal and other wire monopole antennas”. IEEE Antennas and Wireless Propagation Letters. 1 (1).
 
[13]  Vinoy, K. J., Abraham, J.K., and Varadan, V.K. (2003). “Fractal dimension & frequency response of fractal shaped antennas”. IEEE Antennas &Propagation Society International Symposium. 22-27 June. Volume 4, 222-225.
 
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Article

Design & Analysis of a Novel Rectangular Microstrip Patch Antenna with Improved Performance Using MATLAB for Pervasive Wireless Applications

1B.Tech 4th Year, Dept. of ETC, SIET, Dhenkanal, Odisha, India

2Asst. Prof. Dept. of ETC, SIET, Dhenkanal, Odisha, India


Wireless and Mobile Technologies. 2014, 2(1), 7-11
DOI: 10.12691/wmt-2-1-2
Copyright © 2014 Science and Education Publishing

Cite this paper:
Nishant Kumar, Ashutosh Kumar Pandey, Aditya Prakash, Shiv Mani Kumar, Rupali Bihari, Manas Ranjan Jena. Design & Analysis of a Novel Rectangular Microstrip Patch Antenna with Improved Performance Using MATLAB for Pervasive Wireless Applications. Wireless and Mobile Technologies. 2014; 2(1):7-11. doi: 10.12691/wmt-2-1-2.

Correspondence to: Manas  Ranjan Jena, Asst. Prof. Dept. of ETC, SIET, Dhenkanal, Odisha, India. Email: manas.synergy@gmail.com

Abstract

In this paper, we have achieved an efficient rectangular patch antenna with optimized parameters by using MATLAB. The proposed antenna is a type of radio antenna with a low profile which is mounted on a flat surface. It consists of a flat rectangular sheet or patch of metal, mounted over a larger sheet of metal called a ground plane. A resonant frequency of 3 GHz is achieved with improved parameters like high return loss, Low VSWR, High directivity & gain, High efficiency. So the proposed antenna can be suitable for the radio astronomy & space research applications.

Keywords

References

[1]  J R James & P S Hall, “Handbook of Microstrip Antennas”, Peter Peregrinus Ltd, UK, 1989.
 
[2]  Balanis, Constantine, “Antenna theory-Analysis and Design”, John Wiley & Sons Ltd, Reprinted 2008.
 
[3]  I. J. Bahl and P. Bhartia, “Microstrip Antennas”, Artech House, Deldham, MA, 1980.
 
[4]  D.M. Pozar, “Microstrip Antennas,” Proc. IEEE, Vol. 80, No. 1, pp. 79-81, January 1992.
 
[5]  C. A. Balanis, “Advanced Engineering Electromagnetics”, John Wiley & Sons, New York, 1989.
 
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[6]  E.O. Hammerstad, “Equations for Microstrip Circuit Design,” Proc. Fifth European Microwave Conf., pp. 268-272, September 1975.
 
[7]  K. R. Karver and J. W. Mink. “Microstrip Antenna Technology,” IEEE Trans. Antennas Propagat., Vol. AP-29, No. 1. Pp. 2-24, January 1981.
 
[8]  S L Mallikarjun, P M Hadalgi, “Single layer modified Rectangular Microstrip array Antenna for multiband & wideband applications”, Indian Journal of Radio & Space Physics, Vol 39, June 2010, PP 156-162.
 
[9]  Shiv Charan Puri & M.G.Tiary, A Novel Quad Band Rectangular Microstrip Patch Antenna for Wireless Applications”, International Symposium on Devices MEMS, Intelligent Systems & Communication (ISDMISC) 2011.
 
[10]  Devdutt Sharma1 & Laxmi Shrivastava, “Design And Analysis of Co-Planar Wideband Microstrip Slot Antenna Using MATLAB”, IJETAE, Volume 3, Issue 6, June 2013.
 
[11]  Md. Maruf Ahamed, Kishore Bhowmik & Md. Shahidulla, “Rectangular Microstrip Patch Antenna at 2GHZ on Different Dielectric Constant for Pervasive Wireless Communication”, IJECE, Vol. 2, No. 3, June 2012, pp. 417-424.
 
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