关键词: 无线传感器网络, 自组织覆盖, 生物竞争

Abstract: In the nature，it exists the competition behavior to compete for the resources between the biological individual.In view of coverage from the self-organization of the wireless sensor network，the article proposes one new distributional algorithm through researching biological competition behavior.This method regards node of sensor network as individual in biological competition，the goal monitoring region as the living resources，and the optimized disposition for the sensor network as it for the biological competition behavior to living resources.This article applies the optimized disposition method which is realized through the resources competition to the node disposition of the wireless sensor network，reduces the node computation，the migration length and complexity of the information，which can raise the motion efficiency of the wireless sensor and achieve the goal of saving electricity indirectly.The experimental result indicates that this method is convenient，effective，and it also can dispose nodes well and raise the coverage fraction of the network.

Key words: wireless sensor network（WSN）, coverage from the self-organization, biological competition