A Cross-Layer Optimization Algorithm Based on Power Control for Wireless Sensor Network

In wireless sensor network, the main functions of MAC layer and network layer are to detect collision, allocate channel resource, select paths, and transmit information and so on. Aiming at solving such problems between protocol layers in wireless sensor network as relative independence, with no information sharing, failure to satisfy network needs in time, incongruity between the transmit power of network nodes and network energy and so on, a cross-layer optimization algorithm based on power control is proposed to avoid network congestion and save network energy. The simulation results show that the PCSC algorithm is able to enhance network throughput, save network energy and extend network lifetime compared to other algorithms.