A QoS-Aware and Adaptive Soft Frequency Reuse Scheme for Interference Coordination in MMN

This paper proposes an adaptive soft frequency reuse (ASFR) scheme for inter-cell interference coordination in mobile multimedia networks (MMN). We first set up the resource allocation model of MMN within LTE framework. Adaptive modulation and coding (AMC) and maximum throughput (MT) algorithm are employed to complete the system model among 19 cells. Then we design the intra-cell handover mechanism in terms of different quality of service (QoS) requirements to implement ASFR and only limited information needs to be exchanged within a base station. The proposed scheme can adaptively vary the spectrum and power allocation of major and minor subcarriers for each cell according to traffic loads. Simulation results show that the adaptive scheme can obtain a better trade off between system throughput and cell coverage compared with conventional SFR schemes.