Improving Energy- Efficiency in Wireless Sensor Network Using Cooperative MIMO Technique Based on SM

Improvement of the energy efficiency of a wireless sensor network has been a great concern nowadays. The Multiple-Input Multiple-Output (MIMO) methodology is a good technique for improvement of energy efficiency, but it is not practically applicable in WSN because of the limitation of the size of the sensor node. To provide a solution for this, the co-operative MIMO (CMIMO) methodology is used to overcome the constraint which results a good performance. For the improvement of energy efficiency, we use spatial modulation(SM) along with CMIMO to make a new technique called CMIMO-SM. The simulation result indicates that significant energy efficiency enhancement and reduction of energy consumption using CMIMO-SM technique.