Soft Fractional Frequency Reuse Scheme with Macro Diversity
Fangmin Xu, Xiaofeng Tao, XU Xiao-dong, Ping Zhang · Dianzi xuebao · 2007
Frequency reuse and macro diversity are both requested in 3GPP2 AIE system,but current frequency reuse schemes do not support macro diversity.In order to obtain a fiequency reuse scheme with macro diversity,a novel frequency reuse scheme based on soft fractional frequency reuse(SFFR)is proposed.Furthermore,matter-element model,using extension set theo- ry,is established.By analyzing the model,a scheme called SFFR,supporting macro diversity,is derived.Study shows that the pro- posed scheme can effectively reduce the inter-cell interferences as well as increase spectral efficiency.Furthermore,performance of cell-edge users is improved because of interference coordination and macro diversity gain.Simulation results show that this scheme improves average capacity of cell-edge.