Efficient Clustering Technique for Cooperative Wireless Sensor Network

The nodes of a wireless sensor network (WSN) collect the data of interest from the deployment area and cooperatively send it to sink in multiple hops. Recently, virtual multiple input multiple output (V-MIMO) technique has been introduced in which the node cooperation is extended to form a virtual antenna array and communication is accomplished using space time block coding. The present work extends the scope of VMIMO by proposing a new clustering technique. It creates the temporary cluster heads and their respective cooperative nodes, collects information from them and then the final clustering is accordingly done. The simulation result shows significant improvement in the energy efficiency of the WSN.