Analysis of impact of Network Topology on Energy Efficient Cooperative Medium Access Control Protocol for Wireless Ad-hoc Network

Ellammal, C.; Sadasivam, G. Sudha
July 2014
Australian Journal of Basic & Applied Sciences;Jul2014, Vol. 8 Issue 10, p72
Academic Journal
Background: Relay assisted cooperative communication which utilizes nearby terminals to relay the overhearing information has a significant performance gains over the direct communication for wireless Ad-hoc networks. A powerful Medium Access Control (MAC) scheme is needed to support cooperative communication and also to solve the difficulties raised during relaying and cooperative computing. Objective: The challenging task in the design of Ad-hoc Network is the extension of network lifetime as all the devices are battery operated. This paper proposes new energy constrained Medium Access Control (MAC) protocol which improves network lifetime as well as maximizes throughput. The impact of various network topologies on the performance of MAC protocol is also discussed. Results: The simulation parameters like throughput, network lifetime, energy consumption and end to end delay are taken to compare the performance of proposed protocol with existing IEEE 802.11. The results are analyzed for random, grid and triangle network topologies. Conclusion: The simulation results show that the proposed protocol performs well comparing to existing IEEE 802.11 in terms of network lifetime, energy consumption and throughput with little increase in end to end delay.


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