期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2012
卷号：46
期号：2
页码：0948-0952
出版社：Journal of Theoretical and Applied
摘要：Sensor nodes usually operate on small batteries with restricted sources of energy in the wireless sensor networks (WSNs). Energy efficiency is one of the most critical concerns for it. Clustered topology schedule is important method of saving energy with some advantages of managing conveniently, using the energy efficiently, and fusing the data easily. This paper gives an improved Alamouti strategy between the transmitting cluster and receiving cluster in wireless sensor networks after analyzing the model of wireless communication. In this new strategy, a scheme of transmitting nodes selection is proposed in order to improve the efficiency of transmitting. The strategy adjusts the number of nodes participating cooperative transmission according to the channel character between the data sensor nodes and sink node. Simulations show the results of energy consumption among optimal algorithm, bound algorithm and random algorithm. And the superiority of the new scheme is confirmed. Some rules are given in the process of the simulation analysis.
