Energy efficient communications for future broadband cellular networks

Energy efficiency is increasingly important for wireless cellular systems due to the limited battery resources of mobile clients. While modern cellular standards emphasize low client battery consumption, existing techniques do not explicitly focus on reducing power that is consumed when a client is actively communicating with the network. In this paper, we evaluate the performance of the recently introduced power-bandwidth optimization techniques using realistic cellular system simulation model, which is compliant with the methodology proposed for the IEEE 802.16m standard.The paper addresses several practical trade-offs associated with the implementation of energy efficient schemes. Our simulation results indicate that energy efficient techniques continue to provide considerable power savings, even when accounting for realistic system parameters and channel environments.