Abstract
In Wireless Sensor Network (WSN) researches, WSN routing algorithm is one of the hot issues. This article focuses on GPSR (Greedy Perimeter Stateless Routing) and uses the NS2 (Network Simulator-2) to simulate both GPSR and the improved algorithm GPSRI (GPSR-Improved). Consequently, we have compared GPSRI with GPSR in terms of important parameters, such as data transmit delay and data relay hops. The experimental results show that GPSRI can transmit data more effectively than GPSR due to reduced delay and hops. Moreover, node-disjoint multipath realization assures the reliability of the network data transmit, The void issue in GPSR is resolved effectively as well.
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