Energy Efficient Coordinated Multipoint Transmission and Reception Techniques-A Survey

Energy efficiency in cellular networks is a growing concern for cellular operators to not only maintain profitability, but also to reduce the overall environment effects. According to technical analysts, the base stations are the most energy intensive part of a typical cellular network. Saving power in base stations is therefore the primary focus in energy efficient operation. The main goal of energy efficiency is for saving and reducing power consumption while guaranteeing QoS. As mobile traffic is increasing, new applications are raising expectations for higher data rates creates heterogeneous Network by introducing low power nodes is an attractive approach to meeting traffic demand, performance and energy efficiency. According to technologist, the energy efficiency of cellular network can be improved at component level, link level and network level. There is lots of literature available on energy efficiency at component level, link level and network level without coordination. The energy efficiency can also be achieved by coordinated transmits and receive at network level, this can be achieved by power saving protocols, energy aware cooperative base station power management, cell zooming, link adaptation and beamforming with CoMP. This attempt will review existing CoMP solutions towards energy efficient architecture and network