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IJSTR >> Volume 3- Issue 4, April 2014 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Reliable Energy Efficient Routing Algorithms In Wireless Ad Hoc Networks

[Full Text]



Sebastin Christhu Raj A, Helensupriya M, Shanmuga Priya S



Index Terms: Low Energy adaptive routing, battery-aware routing, end-to end and hop-by-hop retransmission, reliability, wireless ad hoc networks.



Abstract: Low Energy Adaptive Reliable Routing (LEARR) finds routes which require least amount of energy for reliable packet transfer in ad hoc networks. It defines the energy cost of packet forwarding by a node as the fraction of remaining battery energy which is consumed by a node to forward a packet. It includes the energy consumed for retransmission of the packet as well, when the packet or its acknowledgment is lost. It is found that LEARR can effectively reduce the energy consumption of nodes and balance the traffic load among them. Furthermore, LEARR is able to find reliable routes, in which constituent links require less number of packet retransmissions due to packet loss. It in turns decreases the latency of packet delivery and saves energy as well. To prolong the network lifetime, power management and energy-efficient routing techniques become necessary. Energy-aware routing is an effective way to extend the operational lifetime of wireless ad hoc networks.



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