Virtual MIMO in wireless sensor network - a survey

The growing interest in wireless sensor network which is battery operated, demands an energy efficient network with maximum lifetime. To solve this problem a new architectural technique developed known as Virtual MIMO. The key role of this technique in the design of energy efficient network inspired for surveying about its utility and deployment. This survey paper mainly focuses on the implementation of MIMO technology in single antenna system by exploiting the cooperative concept and its energy saving method by the help of Virtual MIMO technique. It also highlights the major optimizing parameter of Virtual MIMO techniques to improve the life time of a wireless sensor network with minimum energy consumption.