Next-generation wireless networks use point-to- multipoint paradigms of classical cellular networks. They will be based on large interactions, where the involved nodes cooperate with one another in order to improve the performance of their own communication and that of the global network. Cooperative communications based on relaying nodes have a promising approach to increase spectral and power efficiency, network coverage, and to reduce outage probability. The concept of Cooperative Communication (CC) is to exploit the broadcast nature of wireless networks where the neighboring node overhears the source signal and relays the information to the destination. The aim of this work is to exploit multihop cooperative transmission technique to combat the effect of fading and channel interferences. Our proposed method consider channel assignment, relay assignment and power control by taking the advantage of spatial diversity in cooperative wireless networks to improve the energy efficiency. We propose comparison of Direct Transmission (DT) and Cooperative Transmission (CT) in static and dynamic wireless networks. For optimizing the energy of static and dynamic network we propose an algorithm. The energy optimization of static network is done by using Branch and Bound algorithm. For dynamic network online algorithm is proposed. Branch and bound algorithm is mainly used for finding the optimal solution of a problem. By using these algorithms energy is optimized. Keywords: Network coverage, signal and relay, algorithm, transmissionCite this Article Nimisha MK, Alphonso Mathew, Shafeeja MP et al. Optimization of Energy efficiency in Multihop cooperative communication Networks. Journal of Network Security. 2016; 4(2): 48–52p.
