一种基于OI与HII相结合干扰协调方案的研究

Research of Interference Coordination Scheme Based on Combination of OI and HII

随着4G时代的到来,LTE_A网络也在为4G的后续发展做准备。以OFDM为主干技术的LTE_A网络,虽然能够很好地解决小区内同频干扰问题,但是在小区间干扰却无能为力。为了能解决小区间干扰问题,提出了一种基于过载指示与高干扰指示相结合的新干扰协调技术。通过对资源的合理调度和部分功率控制来解决小区间同频干扰。通过Matlab仿真,结果表明该方案不仅能够很好地解决小区间同频干扰而且能够提升小区用户传输速率和小区吞吐量。

With the advent of the era of 4G, LTE_A networks are in preparation for the subsequent development of 4G. LTE_A network with OFDM of main technology although can effectively solve the problem of the same frequency interference inter cell, but facing to interference between the cell is powerless. In order to solve the problem of interference cell, a new technology of interference coordination based on overload indication and high interference indication has been proosed. Through the reasonable scheduling of resources and part of the power control to solve the same frequency interference between cell. Through Matlab simulation, the results show that the scheme not only can well solve with frequency interference between cell ,but also can improve user＇s transmission rate and throughput.