摘要
针对LTE-A(long term evolution-advanced)中继系统存在的干扰问题,提出一种基于小区间干扰协调(inter cell interference coordination,ICIC)的资源分配算法。该算法利用LTE-A网络里各个小区基站之间的交互信息,得到邻小区资源块(resource block,RB)的使用状况,将空闲率最大的资源块分配给信道增益最大的用户,从而在满足用户业务需求的前提下提高小区吞吐量。仿真结果表明,该算法优于传统的SSA(separate and sequential allocation)算法,系统整体性能得到提升。
This paper proposed a resource scheduling algorithm based on ICIC to solve the interference problem existing in the LTE-Arelay system.This algorithm utilized the interaction signals between eNodeB(evolved node B) in each cell to acquire the use situation of resource block in the neighbor cell.Then it assigned the resource block with largest free rate to those users who owned largest channel gain so as to improve the system throughput performance in premise of the users’ satisfaction.Simulation results indicate that the proposed algorithm improves the system performance and yields better performance than the existing SSA(separate and sequential allocation)schemes.
出处
《计算机应用研究》
CSCD
北大核心
2013年第7期2185-2189,共5页
Application Research of Computers
基金
国家自然科学基金资助项目(61071118
60702055)
重庆市杰出青年科学基金资助项目(CQCSTC)
关键词
LTE-A
中继网络
小区间干扰协调
资源调度
LTE-A
relay network
inter cell interference coordination
resource scheduling