Performance Enhancement of AODV Routing Protocol in Wireless Mesh Networks

Minhas, Tayyeba

doi:10.7763/ijiee.2014.v4.486

Cited by 1 publication

(1 citation statement)

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“…However, factors like change in topology, number of flows, traffic characteristics of flows and their routes as well as channel capacity and available transmission rate at physical layer [3]. In WMN, information is forwarded using the best possible routes to any destination and the best path can be determined using routing protocol.…”

Section: Introductionmentioning

confidence: 99%

Congestion Reduction in Wireless Mesh Networks

Grover¹,

Singh²,

Rani³

2015

IJCA

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Wireless Mesh Networks are looming as a key technology for next generation of existing wireless networks. The network falls into the category of infrastructure less wireless networks that rely on high mobility and dynamic topology. Though mesh topology provides good reliability, market coverage and scalability, there are number of issues and challenges in WMN. Amongst all, the most prevailing issue is the problem of packet loss due to congestion. The routing protocol always uses the best shortest path for the transmission of data. Congestion occurs when each time the protocol chooses the same path. Congestion problem can be overcome by involving a congestion control algorithm. In this paper, a congestion control scheme based on AODV routing protocol has been proposed. In this technique, buffers at the intermediate nodes are checked against two cases. First the capacity of the buffer on the whole is checked, if it crosses a certain threshold then second condition i.e. the capacity of the packets present in the buffer for the available destinations is checked against a second threshold. If it crosses a certain threshold value then data forwarding is carried out through alternate paths. The proposed technique has improved the performance of AODV protocol. Simulation results for AODV carried out in NS-2 clearly show the increase in throughput and decrease in end to end delay.

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Section: Introductionmentioning

confidence: 99%