小区间动态干扰协调的改进方案

对下一代移动通信系统的小区间动态干扰协调算法进行研究,通过分析干扰水平,负载状况,基站的调节能力以及用户的位置,通过负载因子变化来接纳控制,提高边缘用户的数据传输速度,保证小区用户的公平性。通过上行功率控制及接纳算法改进方案;同时对小区用户划分区域设定,提出了小区间干扰协调的改进算法(ICPF), 并进行系统仿真计算分析,结果表明和以往传统算法相比,系统性能得到有效改进,进一步提高了系统公平性并增加小区边缘用户的吞吐量。

A Modified Scheme for Inter-Cell Dynamic Interference Coordination

Inter-cell interference coordination scheme for the next generation mobile communication systems is studied. Through analysis of inter-cell interference, load condition,base station adjustment ability and user location,and by adjustment of load factor,the access control is realized, the data transmission rate of the cell edge user improved, and thus the system fairness ensured. With the modified schemes of up-link power control and access control algorithm, and by establishment of sell user-zoning schemes, an improved inter-cell ICPF (Interference Condition with Proportional Fairness) algorithm is proposed. Simulation on ICPF is conducted and the results show that ICPF could effectively improve the system fairness and increase the throughput of the cell-edge user as compared with traditional algorithms.