Exploiting Geometric Advantages of Cooperative Communications for Energy Efficient Wireless Sensor Networks

Irfan AHMED, Mugen PENG, Wenbo WANG

Wireless Signal Processing and Network Lab Beijing University of Posts and Telecommunications, Beijing, P.R.China.

DOI: 10.4236/ijcns.2008.11008                

Abstract

Energy efficiency and enhanced backbone capacity is obtained by exploiting the geometric orientation of cooperative nodes in wireless sensor network. The cooperative communication in wireless sensor networks (WSN) gives us leverage to get the inherent advantages of its random node’s locations and the direction of the data flow. Depending on the channel conditions and the transmission distance, the number of cooperative nodes is selected, that participate in an energy efficient transmission/reception. Simulation results show that increasing the cooperative receive diversity, decreases the energy consumption per bit in cooperative communications. It has also been shown that the network backbone capacity can be increased by controlled displacement of antennas at base station at the expense of energy per bit.

Keywords

Cooperative Communication, Energy Efficiency, Capacity, Receive Diversity Sensor Network.

Conflicts of Interest

The authors declare no conflicts of interest.

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