POR: Position based Opportunistic Routing for Reliable and Efficient Data Transmission in MANETs
Velusamy Parthasarathy, G. Murugaboopathi, M. J. Carmel Mary Belinda · 2013
1 . Abstract: In mobile ad hoc networks (MANETs), nodes move freely and so the topology of the nodes is highly dynamic. The process of routing the data packets to the destination is a challenging task. In order to provide an efficient and reliable data delivery for these MANETs, a position-based opportunistic routing (POR) protocol is used. This protocol uses the best features of the exiting protocols and algorithms to achieve good performance. It uses GPS to find the exact location of the destination and greedy to route the data packets in an efficient manner to the destination. For the purpose of back up, POR uses the forwarding candidates, which are selected by the greedy node. In case of communication hole, that is if an intermediate node fails or moves out of the coverage area of the node, then Virtual Destination-based Void Handling (VDVH) scheme is further proposed to work together with POR to provide an efficient and reliable data delivery. This is achieved by adjusting the direction of data flow temporarily. The features such as greedy forwarding and robustness through opportunistic routing can still be achieved when handling communication voids. It is proved through simulation that the conventional void handling method exhibits poor results in mobile environments where as VDVH outperforms quite well. (Parthasarathy. V, Murugaboopathi. G, Carmel Mary Belinda. M. J, POR: Position based Opportunistic Routing for Reliable and Efficient Data Transmission in MANETs. Life Sci J 2013;10(2):1862-1868) (ISSN:1097-8135). http://www.lifesciencesite.com. 262