A Green SON Scheme Based on SFFR in Future Cellular Networks

The future cellular network is expected to be of huge scale and heterogeneous. Aiming at realizing green networks, self organizing network (SON) can significantly reduce the cost in a system of high complexity. As the large volume of traffic is transmitted on limited radio spectrum, inter-cell interference (ICI) will become significant problem. This paper focuses on self organizing scheme based on soft fractional frequency reuse (SFFR) framework. The scheme takes different traffic demands into consideration and allocates the power adaptively. Numerical results prove that the proposed scheme can achieve considerable improvement of the performance both on system efficiency and flexibility.