Game Theory Based Cooperative MIMO Routing Scheme for Lifetime Enhancement of WSN

Abstract

The lifetime of wireless sensor network (WSN) is reduced due to the impact caused by channel fading, interference and unbalanced energy consumption. The node’s energy is wasted due to uneven energy consumption for various processes. Communicating the data from source to sink node will consume more power compared to data sensing and processing etc. The channel fading is mitigated through spatial diversity techniques to reduce the energy required for data communication. Spatial diversity can be obtained by using multiple cooperative nodes both at the transmitter as well as the receiver. The cooperative multiple input multiple output (C-MIMO) technique is used to improve the communication performance of WSNs. An efficient cluster based routing protocol is called efficient energy consumption protocol (EECP) which involves fixed clusters and randomized weighted algorithm for cluster head selection to reduce the energy consumption efficiently. The energy consumption of the node is reduced in WSN by incorporating the CMIMO in EECP routing protocol using coalition game. In this paper the game theory based EECP routing protocol with MIMO technology is used to achieve higher energy savings. Simulation results of proposed game theory based CMIMO shows that great energy savings can be achieved and also prolong the lifetime of the network.