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American Journal of Electrical and Electronic Engineering

ISSN (Print): 2328-7365

ISSN (Online): 2328-7357

Website: http://www.sciepub.com/journal/AJEEE

Article

Improving Learning in Electronic Engineering through Platform Open Source

1Dpto. Ingeniería Eléctrica y de Sistemas y Automática, Universidad de León. León, España

2Member of GMID-CyTULE (Grupo Multidisciplinar de Innovación Docente de Ciencias y Tecnologías de la Universidad de León)

3Dpto. de Ing. de Arquitectura de computadores, Universidad de León, León, España


American Journal of Electrical and Electronic Engineering. 2014, 2(6), 171-174
DOI: 10.12691/ajeee-2-6-3
Copyright © 2014 Science and Education Publishing

Cite this paper:
Diez Diez Ángela, Ricardo Gago, Carlos Fernández, Miguel Ferrero, Ramón Angel Fernández. Improving Learning in Electronic Engineering through Platform Open Source. American Journal of Electrical and Electronic Engineering. 2014; 2(6):171-174. doi: 10.12691/ajeee-2-6-3.

Correspondence to: Diez Diez Ángela, Dpto. Ingeniería Eléctrica y de Sistemas y Automática, Universidad de León. León, España. Email: adied@unileon.es

Abstract

In this study, the main objective is to present an initiative on the Grade students of the School of Industrial Engineering and Informatics, University of León. We have applied the methodology of teaching that allows enhance the interest of students for their own learning. The working method has been organizing workshops that employ strategies of project-based learning and group projects. These projects are limited in time and with a high degree of involvement by the student. There has also been an information system which supports communication and work with all of the workshop participants. For the development of this experiment, we used a microcontroller system as open source Arduino (1). This platform allows improving the teaching of electronic and automatic concepts in a simple and easy way to apply.

Keywords

References

[1]  Arduino. Página oficial Arduino. Arduino. [En línea] 2011. [Citado el: 18 de Febrero de 2013.] http://arduino.cc/en/Main/ArduinoBoardUno.
 
[2]  Motivar para aprender en el aula. Las siete claves de la motivación escolar. Gilbert, Ian. Barcelona: Paidós Educator, 2005. 84-493-1676-6.
 
[3]  Barriocanal, Luís. Web de Empresa en Google Sites.Cursos de Aulablog para IniciaFP. Web de Empresa en Google Sites. [En línea] Aulablog para Inicia FP, 2008. [Citado el: 10 de Marzo de 2013.] http://cursos.iniciafp.es/googlesites/presentacion.
 
[4]  Martínez-Salamova Sánchez, E. La motivación para el aprendizaje. La motivación para el aprendizaje. [En línea] Octubre de 2011. [Citado el: 10 de Febrero de 2013.] http://www.uhu.es/cine.educacion/didactica/0083motivacion.htm.
 
[5]  The Raspberry Pi Foundation. Raspberry Pi | An ARM GNU/Linux box for $25. Take a byte! Web oficial Raspberry Pi. [En línea] The Raspberry Pi Foundation. [Citado el: 1 de Octubre de 2012.] http://www.raspberrypi.org/.
 
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[6]  Barrett, Steven F. Arduino Microcontroller Processing for Everyone! s.l.: Morgan & Claypool, 2010.
 
[7]  Margolis, Michael y Weldin, Nicholas. Arduino Cookbook. Sebastopol : O'Reilly Media, Inc., 2011.
 
[8]  Banzi, Massimo. Getting Started with Arduino. Sebastopol: Make: Books. O'Really, 2011.
 
[9]  Google this!: using Google apps for collaboration and productivity. Herrick, Dan R. s.l.: SIGUCCS '09 Proceedings of the 37th annual ACM SIGUCCS fall conference: communication and collaboration, 2009.
 
[10]  A Problem and Project-Based Learning (PBL) approach to motivate group creativity in engineering education. Zhou, C., Kolmos, A. y Nielsen, J. D. 1, 2012, The International Journal of Engineering Education, Vol. 28, págs. 3-16.
 
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Article

New Squaring and Square-rooting Circuits Using Cdba

1Department of Electronics and Communication Engineering, Echelon Institute of Technology, Faridabad, India

2Department of Electronics and Communication Engineering, Faculty of Engineering and Technology, Sharda University, Ghaziabad, India

3Division of Electronics and Communication Engineering, Netaji Subhas Institute of Technology, Sector 3, Dwarka, New Delhi, India


American Journal of Electrical and Electronic Engineering. 2014, 2(6), 175-179
DOI: 10.12691/ajeee-2-6-4
Copyright © 2014 Science and Education Publishing

Cite this paper:
J. K. Pathak, A. K. Singh, Raj Senani. New Squaring and Square-rooting Circuits Using Cdba. American Journal of Electrical and Electronic Engineering. 2014; 2(6):175-179. doi: 10.12691/ajeee-2-6-4.

Correspondence to: Raj  Senani, Division of Electronics and Communication Engineering, Netaji Subhas Institute of Technology, Sector 3, Dwarka, New Delhi, India. Email: senani@ieee.org

Abstract

One new squaring and two new square-rooting circuits based on CDBAs have been introduced. The new squarer circuit consists of a CDBA, two NMOS transistors and one resistor. On the other hand, the first square-rooting circuit consists of two CDBAs, two NMOS transistors while the second square- rooting circuit consists of only a single CDBA, two NMOS transistors and two PMOS transistors. The proposed circuits exhibit wide input voltage range, very small error and offer low output impedance to facilitate easy cascading without requiring additional buffers. PSPICE simulation results are included which confirm the practical workability of the new circuits.

Keywords

References

[1]  Ismail, M. “Analog VLSI: Signal and Information Processing (International Edition),” McGraw-Hill Inc. 1994.
 
[2]  Roberts, G. W. and Sedra. A. S., “All current-mode frequency selective circuits,” Electronics Letters, 2. 759-761. 1989.
 
[3]  Acar, C. and Ozoguz, S., “A new versatile building block: current differencing buffered amplifier suitable for analog signal processing filters,” Microelectronics Journal, 30. 157-160. 1999.
 
[4]  Acar, C. and Sedef, H., “Realization of nth-order current transfer function using current-differencing buffered amplifiers,” International Journal of Electronics, 90. 277-283. 2003
 
[5]  Maheshwari, S. and Khan, I. A., “Current controlled current differencing buffered amplifier: Implementations and Applications,” Active and Passive Electronic Components, 4. 219-227. 2004.
 
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[6]  Pathak, J. K., Singh, A. K. and Senani, R., “Systematic realization of quadrature oscillators using current differencing buffered amplifiers,” IET Circuits, Devices and Systems, 5. 203-211. 2011.
 
[7]  Keskin, A.U., “A Four quadrant analog multiplier employing single CDBA,” Analog Integrated Circuits and Signal Processing, 40. 99-101. 2004.
 
[8]  Siripruchyanun, M., “A Design of Analog Multiplier and Divider Using Current Controlled Current Differencing Buffered Amplifiers,” International Symposium on Integrated Circuits, 568-571. 2007.
 
[9]  Lawanwisut, S. and Siripruchyanun, M., “Temperature Insensitive Electronically Controllable Current-mode Squarer Based on CC-CDBAs,” Proceedings of the 1st International Conference on Technical Education (ICTE2009), 225-228. 2009.
 
[10]  Al-Shahrani, S.M., “CMOS wideband auto-tuning phase shifter circuit,” IET, Electronics Letters, 43. 804-806. 2007.
 
[11]  Senani, R. and Singh, A. K., “A new Universal Current mode biquad filter”, Frequenz, 56. 55-59. 2002.
 
[12]  Liu, S.I., “Square-rooting and vector summation circuits using current conveyors,” IEE Proc. Circuits, Devices and Systems. 142. 223-226. 1995.
 
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Article

Low Cost Microcontroller Based Decay Measurement System for Display Phosphors

1Department of Physics, R.T.M. Nagpur University, Nagpur - 440033 India

2Depatrment of Electronics, R.T.M. Nagpur University Nagpur - 440033 India

3Department of Instrumentation, V.P.M’s. Polytechnic, Thane, India


American Journal of Electrical and Electronic Engineering. 2014, 2(6), 180-184
DOI: 10.12691/ajeee-2-6-5
Copyright © 2014 Science and Education Publishing

Cite this paper:
V. V. Rangari, A. P. Bhat, V. A. Joshi, S. J. Dhoble. Low Cost Microcontroller Based Decay Measurement System for Display Phosphors. American Journal of Electrical and Electronic Engineering. 2014; 2(6):180-184. doi: 10.12691/ajeee-2-6-5.

Correspondence to: S.  J. Dhoble, Department of Physics, R.T.M. Nagpur University, Nagpur - 440033 India. Email: anup_b5@yahoo.com

Abstract

An attempt is made to design and develop a low cost, simple but efficient instrument to measure the decay time of luminescence in phosphors used in displays. The approach employed here is generally an embedded system designed around an intelligent microcontroller Atmega-16 of Atmale. The system is using a time domain technique of measurement and is further enhanced by developing necessary software for online-offline analysis.

Keywords

References

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[5]  D.V O’Connor, D. Phillips, Time-Correlated Single Photon Counting, Academic Press, 1984.
 
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[6]  Muhammad Ali Mazidi and Janice Gillispe Mazidi, “The 8051 microcontroller and embedded systems”, Pearson education ltd. Indian edition first, Dorling Kindersley india Pvt.Ltd India, 2013.
 
[7]  www.ni.com/dataloggers - “A Review of PC -Based Data Logging and Recording Techniques” National Instrument, India, 2008.
 
[8]  Muhammad Ali Mazidi and Janice Gillispe Mazidi, “The 8051 microcontroller and embedded systems”, Pearson education ltd. Indian edition first, Dorling Kindersley India Pvt. Ltd India, 2013.
 
[9]  National Semiconductor Corporation, “ADC 0809 data sheet-8-bit Microprocessor compatible A/D converters with 8-channel multiplexer”, national Semiconductor data book, 2002.
 
[10]  National Semiconductor Corporation, “precision centigrade temperature sensors”, Atmel data book, 2000.
 
[11]  Atmel Corporation, “8-bit microcontroller with 8k bytes flash”, Atmel Data book, 2000.
 
[12]  H S kalsi, “Electronic instrumentation”, Tata McGraw-Hill Ltd., New Delhi, 1999.
 
[13]  H. Szmacinski and Q. Chang, “Appl. Spectroscope.” 106,2000.
 
[14]  B. Yuan, B. S. R. McClellan, B. F. Al-Mifgai, E. A. Growney, “Am. J. Phys.” 78, 2010.
 
[15]  J.Chen, “Ruthenium (II) pyrene-bipyridine complexes: Synthesis, photo physics, photochemistry and in vivo oxygen sensing,” “Ph.D. Thesis”, Tulane University, 2010.
 
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Article

New Very Low Frequency Oscillator Using only a Single CFOA

1Electronics Engineering Department, Institute of Engineering and Technology, Lucknow, 226021 India

2Division of Electronics and Communication Engineering, NetajiSubhas Institute of Technology, Sector 3, Dwarka, New Delhi, 110078, India


American Journal of Electrical and Electronic Engineering. 2015, 3(1), 1-3
DOI: 10.12691/ajeee-3-1-1
Copyright © 2015 Science and Education Publishing

Cite this paper:
D. K. Srivastava, V. K. Singh, R. Senani. New Very Low Frequency Oscillator Using only a Single CFOA. American Journal of Electrical and Electronic Engineering. 2015; 3(1):1-3. doi: 10.12691/ajeee-3-1-1.

Correspondence to: V.  K. Singh, Electronics Engineering Department, Institute of Engineering and Technology, Lucknow, 226021 India. Email: vksingh@ietlucknow.edu

Abstract

Some time back, Elwakil presented a systematic method of realizing Very Low frequency (VLF) oscillators using current feedback operational amplifiers (CFOA) and demonstrated that the classical Wienbridge oscillator, employing the concept of composite resistor (containing two positive and one negative resistance) can be tailored to generate VLF oscillations. The circuit proposed by Elwakil, however, required two CFOAs along with six resistors and two capacitors. The object of this paper is to report a new VLF oscillator circuit which, in contrast to Elwakil’s circuit, requires onlya single CFOA. The workability of the new circuit has been demonstrated by experimental results using commercially available AD844type CFOAs.

Keywords

References

[1]  C.Toumazou and F.J.Lidgey, “Current feedback op-amps: a blessing indisguise?,” IEEECircuits Devices Mag., vol. 10, no.1, pp. 34-37, 1994.
 
[2]  F.J.Lidgeyand K.Hayatleh, “Current feedback operational amplifiers and applications, Electron. Commun. Eng, vol. 9, no. 4, pp. 176-182, 1997.
 
[3]  A.M. Soliman, “Applications of current feedback amplifier,” Anal. Intregr. Circuits Signal Process. vol. 11, pp. 265-302, 1996.
 
[4]  R. Senani, “Realization of a class of analog signal processing/signal generation circuits: novel configurations using current feedback op-amps”, Frequenz, vol. 52, no. 9-10, pp. 196-206, 1998.
 
[5]  R. Senani and D. R. Bhaskar, “Single op-amp sinusoidal oscillators suitable for generation of very low frequencies,” IEEE Trans. Instrum. Meas., vol. 40, no. 4, pp. 777-779, 1991.
 
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[6]  D.R. Bhaskar and R. Senani, “New CFOA-based Single-Element-Controlled Sinusoidal Oscillators,” IEEE Trans. Instrum. Meas. vol. 55, no. 6, pp. 2014-2021, 2006.
 
[7]  M. T.Abuelma’atti, “Identification of a class of two CFOA-based sinusoidal RC oscillators,” Analog Integrated Circuits Signal Process., vol. 65, pp. 419-428, 2010.
 
[8]  A. S. Elwakil, “Systematic realization of low-frequency oscillators using composite passive-Active resistors”, IEEE Trans. Instrum. Meas., vol. 47, no. 2, pp. 584-586, 1998.
 
[9]  A. S. Sedra and K.C. Smith, “A Second generation Current Conveyor and its applications”, IEEE Transaction on Circuit Theory, vol. CT-17, pp. 132-134, February 1970.
 
[10]  A. Toker, O. Cicekoglu and H.Kuntman, “On the oscillator implementation using a single current feedback op-amp”, Computers and Electrical Engg., vol. 22, pp. 375-389, 2002.
 
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Article

Combined Effect of Block interleaving and FEC on BER Performance of OFDM based WiMAX (IEEE 802.16d) System

1Department of ECE, Institute of Technical Education & Research, Siksha ‘O’ Anusandhan University, Khandagiri Square, Bhubaneswar-751030, Odisha, India

2Ph.D Scholar, Department of Information Technology, AMET University, Tamil Nadu, Chennai, India

3Department of Electronics and Telecommunication Engineering, Vidyalankar Institute of Technology, Mumbai, Maharashtra, India


American Journal of Electrical and Electronic Engineering. 2015, 3(1), 4-12
DOI: 10.12691/ajeee-3-1-2
Copyright © 2015 Science and Education Publishing

Cite this paper:
Arun Agarwal, Saurabh N. Mehta. Combined Effect of Block interleaving and FEC on BER Performance of OFDM based WiMAX (IEEE 802.16d) System. American Journal of Electrical and Electronic Engineering. 2015; 3(1):4-12. doi: 10.12691/ajeee-3-1-2.

Correspondence to: Arun  Agarwal, Department of ECE, Institute of Technical Education & Research, Siksha ‘O’ Anusandhan University, Khandagiri Square, Bhubaneswar-751030, Odisha, India. Email: arunagrawal@soauniversity.ac.in

Abstract

In this World of Digital era the demand of mobile Internet and wireless multimedia applications are growing faster than ever. To satisfy the user requirements and to overcome the limitations of existing wireless technologies, have led the researchers to come up with more advanced and efficient technology. Orthogonal Frequency Division Multiplexing (OFDM) based WiMAX (Worldwide Interoperability for Microwave Access ) is the outcome in this direction which promises to solve the last mile access technology to provide high speed internet access in the residential as well as small and medium sized enterprise sectors. In this paper we have analyzed the effect of Block Interleaving on the Bit Error Rate (BER) performance of the WiMAX Physical layer baseband system conforming to the parameters established by IEEE 802.16 standards for different digital modulation schemes. From the analysis it was observed that addition of interleaving with forward error correction (FEC) improves the system performance by reducing the burst errors during transmission.

Keywords

References

[1]  Mobile WiMAX – Part I: A Technical Overview and Performance Evaluation, http://www.wimaxforum.org/technology/downloads/Mobile_WiMAX_Part1_Overview_and_Performance.pdf.
 
[2]  WiMAX Forum: “Mobile WiMAX. Part I: A Technical Overview and Performance Evaluation,” August 2006. http://www.intel.com/netcomms/technologies/wimax
 
[3]  IEEE 802.16-2004, “IEEE Standard for Local and Metropolitan Area Networks -Part 16: Air Interface for Fixed Broadband Wireless Access Systems”, 1 October, 2004.
 
[4]  IEEE Std 802.16-2001,” IEEE Std. 802.16-2001 IEEE Standard for Local and Metropolitan area networks Part 16: Air Interface for Fixed Broadband Wireless Access Systems”, December 2001.
 
[5]  Arun Agarwal, S.K. Patra, “Performance prediction of Eureka-147 DAB system Using Interleaving and different Coding rates”, in IEEE International Conference on MEMS, Nano & Smart Systems, Proceedings, ICMENS, 2011, vol 403-408, pp. 4119-4125,.
 
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[6]  Ghosh, A.; Wolter, D.R.; Andrews, J.G.; Chen, R., “Broadband wireless access with WiMax/802.16: current performance benchmarks and future potential”, IEEE Communications Magazine, Feb. 2005, Vol. 43, Iss. 2, Pages: 129-136.
 
[7]  Arun Agarwal, Kabita Agarwal, “Design and Simulation of COFDM for high speed wireless communication and Performance analysis”, in IJCA-International Journal of Computer Applications, Oct-2011, Vol-2., pp 22-28, ISBN: 978-93-80865-49-3.
 
[8]  Hasan, Mohammad Azizul,” Performance Evaluation of WiMAX/IEEE 802.16 OFDM Physical Layer”, Master’s Thesis at Helsinki University of Technology, Espoo, June 2007.
 
[9]  Tariq, Umar, Umer Naeem Jilani and Tauseef Ahmad Siddiqui, “Analysis on Fixed and Mobile WiMAX”, Master’s Thesis at Blekinge Institute of Technology, 2007.
 
[10]  Roca, Amalia, “Implementation of a WiMAX simulator in Simulink”, Diploma Thesis, Vienna, February 2007.
 
[11]  John. G. Proakis, “Digital Communications”, 3rd edition, McGraw-Hill, 1995.
 
[12]  Walter Tuttlebee, “Software Defined Radio”, 2002 John Wiley & Sons, Ltd.
 
[13]  H. Harada & Ramjee Prasad, Simulation and Software Radio for mobile communications.: Artech House, 2003.
 
[14]  Ohrtman, Frank,”WiMAX Hand Book Building 802-16 Wireless Network”. McGraw Hill Publishers, 2005.
 
[15]  The Matlab help: “Communications Blockset,” http://www.mathworks.com
 
[16]  http://www.en.wikipedia.org/wiki/WiMAX
 
[17]  http://www.wimax.com/general/what-is-wimax
 
[18]  Arun Agarwal, Chinmayee Behera, Kabita Agarwal, “Effect of Guard Time on BER Performance of OFDM based WiMAX (IEEE 802.16d) System”, in International Journal of Electronics and Communication Engineering. 2013, Volume 6, Number 1, pp. 41-55.
 
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Article

An Approach for Fast BCD Addition

1Department of Electrical Engineering, Texas A&M University-Texarkana, Texarkana, USA


American Journal of Electrical and Electronic Engineering. 2015, 3(1), 13-16
DOI: 10.12691/ajeee-3-1-3
Copyright © 2015 Science and Education Publishing

Cite this paper:
Parag K. Lala. An Approach for Fast BCD Addition. American Journal of Electrical and Electronic Engineering. 2015; 3(1):13-16. doi: 10.12691/ajeee-3-1-3.

Correspondence to: Parag  K. Lala, Department of Electrical Engineering, Texas A&M University-Texarkana, Texarkana, USA. Email: plala@tamut.edu

Abstract

This paper presents a technique for fast addition of multi-digit BCD numbers. The addition of all columns can be performed simultaneously, and the carry values are utilized only in the final stage of the addition. Thus the traditional carry propagation process is drastically reduced, hence speeding up the addition process. The addition technique is used in the summation of partial products generated during a new multiplication approach proposed in the paper resulting in a faster multiplication.

Keywords

References

[1]  P. K. Lala, Principles of Modern Digital Design, John Wiley & Sons, 2007.
 
[2]  M.F. Cowlishaw, “Decimal floating-point: algorism for computers”,. Proc. 16th IEEE Symposium on Computer Arithmetic, pp. 104-111, June 2003.
 
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[4]  T.B. Juang, H.H. Peng, H.L. Kuo, “Parallel and digit-serial implementations of area-efficient 3-operand decimal adders”, International Journal of Soft Computing and Engineering (IJSCE), vol. 3, issue 5, pp. 177-182, November 2013.
 
[5]  C.Sundaresan, C.V.S. Chaitanya, P.R. Venkateswaran, S.Bhatt and J. Mohan Kumar, “High speed BCD adder”, Proc. 2011 2nd International Congress on Computer Applications and Computer Science, Advances in Intelligent and Soft Computing. Vol. 145, pp. 113-116, 2012.
 
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[6]  A. Bayrakci and A. Akkas, “Reduced delay BCD adder”, Proc.. IEEE 18th Int. Conf. on Application-specific Systems, Architectures and Processors, (ASAP), pp. 266-271, July 2007.
 
[7]  A. Vazquez and E. Antelo, "A high-performance significant BCD adder with IEEE 754-2008 decimal rounding," Proc. 19th IEEE Symposium on Computer Arithmetic (ARITH-19), pp. 135-144, 2009.
 
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Article

AFLISR Algorithm Distribution Reliability Fault

1Editorial Board Member, AJEEE

2Arya Engineering College, Jaipur, India


American Journal of Electrical and Electronic Engineering. 2015, 3(1), 17-21
DOI: 10.12691/ajeee-3-1-4
Copyright © 2015 Science and Education Publishing

Cite this paper:
Amit Sachan, Ashish Ranjan. AFLISR Algorithm Distribution Reliability Fault. American Journal of Electrical and Electronic Engineering. 2015; 3(1):17-21. doi: 10.12691/ajeee-3-1-4.

Correspondence to: Amit  Sachan, Editorial Board Member, AJEEE. Email: amitsachan55@gmail.com

Abstract

Advanced Fault Location Isolation and Supply Restoration (AFLISR) is describing as the smart brain at the control center, using remotely controllable devices to execute the smart decisions. AFLISR application can improve reliability intensely deprived of compromising safety and asset protection. AFLISR systems that automatically detect faults, isolate the impaired portion of the feeder, and restore as plentiful facility as conceivable within seconds as part of their strategy to accomplish a “self-healing” grid. One problem with these systems is that service restoration is often blocked due to heavy loading on backup feeders. The next generation of automatic restoration systems will yield improvement of further advanced control services that are existence installed as part of the smart grid. After encountering a load transfer limit, the automatic restoration system may initiate schedules to free up capacity on the pretentious feeders so enabling the load transfer to continue. Capacity issue strategies can embrace instigation of petition response schedules, initiation of CVR, and impermanent reduction of fast charging actions for electric vehicles.

Keywords

References

[1]  Zhu Min-jie, Li Ming, (2012), The study of distribution grid distributed self-healing under dynamic operating modes, Electricity Distribution (CICED), 2012 China International Conference, pp. 1-4.
 
[2]  Tsai. M and Pan. Y, (2011), “Application of BDI-based intelligent multi-agent systems for distribution system service restoration planning,” Euro. Trans. Electr. Power, pp. 1783-1801.
 
[3]  Z. Chen. W, (Feb. 2010) “Quantitative decision-making model for distribution system restoration,” IEEE Trans. Power Syst., vol. 25, no. 1, pp. 313-321.
 
[4]  Song. B, Li. P, Wang. T and Wang. W, (2010), “Multi-agent approach for service restoration of microgrid,” in Proc. 5th IEEE Conf. Indust. Electron. Appl., Taichung, Taiwan, pp. 962-966.
 

Article

The 5th Generation Mobile Wireless Networks- Key Concepts, Network Architecture and Challenges

1Department of Electronics and Communication Engineering, Institute of Technical Education & Research, Siksha ‘O’ Anusandhan University, Khandagiri Square, Bhubaneswar, Odisha, India

2Department of Electronics and Telecommunication Engineering, CV Raman College of Engineering, Bhubaneswar, Odisha, India


American Journal of Electrical and Electronic Engineering. 2015, 3(2), 22-28
DOI: 10.12691/ajeee-3-2-1
Copyright © 2015 Science and Education Publishing

Cite this paper:
Arun Agarwal, Gourav Misra, Kabita Agarwal. The 5th Generation Mobile Wireless Networks- Key Concepts, Network Architecture and Challenges. American Journal of Electrical and Electronic Engineering. 2015; 3(2):22-28. doi: 10.12691/ajeee-3-2-1.

Correspondence to: Arun  Agarwal, Department of Electronics and Communication Engineering, Institute of Technical Education & Research, Siksha ‘O’ Anusandhan University, Khandagiri Square, Bhubaneswar, Odisha, India. Email: arunagrawal@soauniversity.ac.in

Abstract

The process of learning, our way of working, thinking and interaction has all changed due to the internet supported by world wide mobile revolution. Currently the 4G’s concept is marching towards the standardization phase. So time has come to introduce a new technology in which we can connect to multiple wireless technologies, networks, terminals and applications, all simultaneously and can also switch between them. This latest technology is named as 5G. 5G (5th generation mobile networks or 5th generation wireless systems) is a term used in some research papers and projects to denote the next major phase of mobile telecommunications standards beyond the current 4G/IMT- Advanced standards. 5G is considered as beyond 2020 mobile communications technologies. This upcoming technology will support IPv6 and flat IP. This paper addresses an overall description of the 5G systems and its architecture, standard, benefits, challenges in deployment, Security issues and scope of 5G technologies. This paper will also focus the researches being made on worldwide wireless web (WWWW), Dynamic Adhoc Wireless Network (DAWN) and real wireless world.

Keywords

References

[1]  Theodore S. Rappaport, “Wireless communications principles and practice”, second edition, Pearson, pp 26-39.
 
[2]  Wayne Tomasi, “Advanced Electronic Communication Systems”, sixth edition, PHI Learning, pp. 466-488.
 
[3]  Arun Agarwal, Kabita Agarwal, “The Next Generation Mobile Wireless Cellular Networks – 4G and Beyond”, American Journal of Electrical and Electronic Engineering, © Science and Education Publishing, Vol. 2, No. 3, pp. 92-97, April 2014.
 
[4]  Cheng Xiang Wang, Fourat Haider et.al., “Cellular Architecture and Key Technologies for 5G wireless Communication Networks”, IEEE commun. Mag., February 2014, pp. 122-129.
 
[5]  Erik Dahlman, Gunnar Mildh et.al., “5G Wireless Access: Requirements and Realization”, IEEE Commun. Mag.— Communications Standards Supplement, December 2014, pp. 42-47.
 
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[6]  Sapana Singh, Pratap Singh “Key Concepts and Network Architecture for 5G Mobile Technology “, International Journal of Scientific Research Engineering & Technology (IJSRET), Volume 1 Issue 5, pp. 165-170.
 
[7]  V. Chandrasekhar, J. G. Andrews, and A. Gatherer,“Femtocell Networks: A Survey,” IEEE Commun. Mag., vol. 46, no. 9, Sept. 2008, pp. 59-67.
 
[8]  F. Rusek et al., “Scaling Up MIMO: Opportunities andChallenges with Very Large Arrays,” IEEE Sig. Proc.Mag., vol. 30, no. 1, Jan. 2013, pp. 40-60.
 
[9]  Lipfert, Hermann (August 2007). MIMO OFDM Space Time Coding – Spatial Multiplexing, Increasing Performance and Spectral Efficiency in Wireless Systems, Part I Technical Basis(Technical report). Institute fürRundfunktechnik.
 
[10]  Berger, Lars T.; Schwager, Andreas; Schneider, Daniel M. (February 2014). MIMO Power Line Communications: Narrow and Broadband Standards, EMC, and Advanced Processing. Devices, Circuits, and Systems. CRC Press.
 
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Article

Simple Mathematical Model for Ferromagnetic Core Inductance and Experimental Validation

1Department of Physics, Higher Teacher Training College, University of Bamenda, PO Box 39 Bamenda, Cameroon

2Laboratory of Electronics and Signal Processing, Faculty of Science, University of Dschang, PO Box 67 Dschang Cameroon

3Laboratory of Modelling and Simulation in Engineering, Biomimetics and Prototypes, Faculty of Science, University of Yaounde I, PO Box 812 Yaounde, Cameroon


American Journal of Electrical and Electronic Engineering. 2015, 3(2), 29-36
DOI: 10.12691/ajeee-3-2-2
Copyright © 2015 Science and Education Publishing

Cite this paper:
B. Nana, S. B. Yamgoué, R. Tchitnga, P. Woafo. Simple Mathematical Model for Ferromagnetic Core Inductance and Experimental Validation. American Journal of Electrical and Electronic Engineering. 2015; 3(2):29-36. doi: 10.12691/ajeee-3-2-2.

Correspondence to: B.  Nana, Department of Physics, Higher Teacher Training College, University of Bamenda, PO Box 39 Bamenda, Cameroon. Email: na1bo@yahoo.fr, url: http//www.lamsebp.org

Abstract

In determining the properties and inductance of ferromagnetic core inductor, hysteresis modeling is of high importance. Many models are available to investigate those characteristics but they tend to be complex and difficult to implement. In this paper, we report a new mathematical model based on the experimental data of hysteresis for ferromagnetic core inductor. The proposed model can restore the hysteresis curve with a little RMS error. We used the model to determine analytically the expression of the current in a RL series circuit forced by an alternating source. A good agreement is found between our theoretical and experimental results.

Keywords

References

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Article

Synchronization of Diffusively Coupled Oscillators: Theory and Experiment

1Department of Physics, Higher Teacher Training College, University of Bamenda, PO Box 39 Bamenda, Cameroon

22Laboratory of Modelling and Simulation in Engineering, Biomimetics and Prototypes, Faculty of Science, University of Yaounde I, PO Box 812 Yaounde, Cameroon


American Journal of Electrical and Electronic Engineering. 2015, 3(2), 37-43
DOI: 10.12691/ajeee-3-2-3
Copyright © 2015 Science and Education Publishing

Cite this paper:
B. Nana, P. Woafo. Synchronization of Diffusively Coupled Oscillators: Theory and Experiment. American Journal of Electrical and Electronic Engineering. 2015; 3(2):37-43. doi: 10.12691/ajeee-3-2-3.

Correspondence to: B.  Nana, Department of Physics, Higher Teacher Training College, University of Bamenda, PO Box 39 Bamenda, Cameroon. Email: na1bo@yahoo.fr

Abstract

In this paper complete synchronization of diffusively coupled oscillators is considered. We present the results of both, theoretical and experimental investigations of synchronization between two, three and four almost identical oscillators. The method of linear difference signal has been applied. The corresponding differential equations have been integrated analytically and the synchronization threshold has been found. Hardware experiments have been performed and the measured synchronization error of less than 1% has been determined. Good agreement is found between theoretical and experimental results.

Keywords

References

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[15]  Nana B. and Woafo P, “Synchronization in a ring of four mutually coupled Van der pol oscillator: Theory and experiment,” Phys Rev E 74, 1-8. 2006.
 
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