Distributed Cognitive Routing in Multi-channel Multi-hop Networks with Accessibility Consideration

Mehdi Golestanian^1, , Mohammad Reza Azimi² and Reza Ghazizade¹

¹Department of Electrical Engineering, Birjand University, Birjand, Iran

²Department of Computer Engineering, Shahid bahonar university of Kerman, Kerman, Iran

Cite this paper:
Mehdi Golestanian, Mohammad Reza Azimi and Reza Ghazizade. Distributed Cognitive Routing in Multi-channel Multi-hop Networks with Accessibility Consideration. International Transaction of Electrical and Computer Engineers System. 2014; 2(6):149-157. doi: 10.12691/iteces-2-6-1

Abstract

Among Cognitive Radio Network (CRN) research topics, routing algorithms especially for multi-channel networks are in the early stages. In this paper, we design a novel cognitive routing scheme for multi-channel multi-hop wireless networks. The main contribution of the proposed routing scheme is the sub-optimal low computational complexity which makes it applicable for distributed network architecture with power constraints. Other important aspect of the proposed routing scheme is considering the objectives related to the network performance, accessibility and efficient spectrum utilization jointly. As the simulation results demonstrate the presented scheme provides a significant improvement in the spectral efficiency and adequate QoS in term of delay propagation and interference in CRN.

Keywords:
Cognitive Radio routing multi-channel networks accessibility probability based scheme (PBS)

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