关键词: 节点定位, 定位精度, 能量消耗, 无线传感器网络

Abstract: Node location is one of studying hotspot in Wireless sensor network. Now, it doesn’t exist the best optimized node location algorithms because different application system has different request on node location. Two typical distributed node location algorithms were analysed in this paper firstly and gave the analysis result of location precision and energy consumption. A modified node location algorithm(named BB_RP algorithm) was draw out. By simulated test, we compared with the primary algorithms from node location precision and energy consumption. Comparing result showed that the node location precision of BB_RP algorithm is a little lower than primary algorithms but it makes great improvement in energy consumption and coverage speed and delays the lifetime of Wireless sensor network.

Key words: node location, location precision, energy consumption, wireless sensor network(WSN)