Abstract
Reliable source to sink communication is the most important factor for an efficient routing protocol especially in domains of military, healthcare and disaster recovery applications. We present weighted energy aware multipath reliable routing (WEAMR), a novel energy aware multipath routing protocol which utilizes hotline-assisted routing to meet such requirements for mission critical applications. The protocol reduces the number of average hops from source to destination and provides unmatched reliability as compared to well known reactive ad hoc protocols i.e., AODV and AOMDV. Our protocol makes efficient use of network paths based on weighted cost calculation and intelligently selects the best possible paths for data transmissions. The path cost calculation considers end to end number of hops, latency and minimum energy node value in the path. In case of path failure path recalculation is done efficiently with minimum latency and control packets overhead. Our evaluation shows that our proposal provides better end-to-end delivery with less routing overhead and higher packet delivery success ratio compared to AODV and AOMDV. The use of multipath also increases overall life time of WSN network using optimum energy available paths between sender and receiver in WDNs.
Highlights
Recent advances in the field of microelectronics and communications have brought the domain of Wireless Sensor Networks (WSNs) under the spotlight
This paper proposes a new energy aware multipath routing protocol based on AODV and AOMDV
In WSNs, which we have named as weighted energy aware multipath reliable routing (WEAMR)
Summary
Recent advances in the field of microelectronics and communications have brought the domain of Wireless Sensor Networks (WSNs) under the spotlight. Reducing the amount of communication for path discovery to destination node and load balancing on multiple paths to reach the destination is very important to extend the life time of a sensor network All of these unique characteristics of a WSN make it different from the traditional ad hoc network, WSNs require tailor-made protocols. Since the same path is used over and over for future data transmissions, use of such a protocol in WSNs results in faster depletion of the energy of nodes that are in the route path. Such type of strategy can cripple a segment of a network and possibly make it inaccessible.
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