An improved Alamouti strategy with energy efficiency in wireless sensor networks. | [Journal of Theoretical and Applied Information Technology • 2012]

Author(s):

1. Chengzhi Long: School of Information Engineering, Nanchang University, Nanchang 330031, China 2Research Institute of Computer Engineering Technology, Nanchang University, Nanchang 330031, Jiangxi, China

2. Guicai Yu: School of Information Engineering, Nanchang University, Nanchang 330031, China 2Research Institute of Computer Engineering Technology, Nanchang University, Nanchang 330031, Jiangxi, China

3. Jianping Luo: School of Information Engineering, Nanchang University, Nanchang 330031, China 2Research Institute of Computer Engineering Technology, Nanchang University, Nanchang 330031, Jiangxi, China

4. Mantian Xiang: School of Software, Nanchang University, Nanchang 330031, Jiangxi, China

Abstract:

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.

Page(s): 948-952

DOI: DOI not available

Published: Journal: Journal of Theoretical and Applied Information Technology, Volume: 46, Issue: 2, Year: 2012

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