earticle

영어

One of the main design issues of wireless sensor network (WSN) is to prolong the network lifetime and prevent connectivity degradation by employing energy management techniques. But a single route does not make any solution of in terms of energy because it rapidly drains energy of relay nodes. As a result these nodes die quickly than others. In this paper, we present a novel level based path selection and data forwarding techniques for large WSN for hierarchical architecture. In this structure cluster head (CH) is responsible for data fusion and data forwarding. So CHs expense more energy than other nodes. In this work base station constructs multiple routes among the CHs based on the path cost. In the data forwarding phase a CH selects a path from its route cache by considering both path cost and residual energy. Simulation result shows that our proposed technique achieves much higher performance than the classical routing protocols such as LEACH, flooding.