关键词: 无线传感器网络, 物免疫机制, 最少节点数, 矢量量化, 通信节点定位

Abstract:  The number and locations of communication nodes affect the performance of wireless sensor networks distri-buted by random means. A location method of communication nodes with the minimum-number property for wireless sensor networks is proposed by using immune theory and vector quantization technology. The model of the activated wireless sensor node is built according to natural immune mechanism. The minimum-number of communication nodes for transmitting the event message is decided on the basis of immune adaptive adjustment algorithm. Considering the whole node coordinates and number of communication nodes as vectors and vector category, respectively, the representative vectors generated by vector quantization technology are corresponding to the locations of communication nodes in the monitoring area. The simulation results show that the number of communication node is significantly reduced and the deployment of space resource is improved in wireless sensor networks.

Key words: wireless sensor networks, natural immune mechanism, minimum-number node, vector quantization, communication node location