International Journal of Innovative Research in Science, Engineering and Technology (IJIRSET)
Energy efficiency in cellular networks has been receiving significant attention in wireless communication, because of the importance in reducing the energy consumption and maintaining the profitability of networks, in addition it makes these networks "Greener". In the traditional cellular architecture, the urban cell topography increases the capacity along with the coverage require the deployment of a large number of Base Stations (BSs). This approach is cost prohibitive and also increase the Mobile Station (MS) transmission power. An alternative, relaying techniques are expected to alleviate the coverage problem and reduce the MS transmission power.