Transmission power based source routing protocol for MANET with unidirectional links
ICHIT'11 Proceedings of the 5th international conference on Convergence and hybrid information technology
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In an ad-hoc network, a routing protocol which de- tects a transmission route from a source mobile com- puter to a destination one is critical due to mobil- ity and limited battery capacity of mobile computers. Here, a communication link between two mobile com- puters is not always bi-directional, i.e. uni-directional, since transmission power of mobile computers is not the same. Though some ad-hoc routing protocols, e.g. DSR, support routing with uni-directional links, mul- tiple floodings (successive broadcasting) are used and communication overhead is high. This paper proposes a novel routing protocol LBSR supporting uni-directional links and based on combination of a single flooding and multiple unicast message transmissions. In LBSR, route cache mechanism works better than DSR in an environment with uni-directional links. Simulation re- sults show the efficiency of route cache in LBSR.