An Improved Alamouti Strategy With Energy-Efficiency in Wireless Sensor Networks
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.