论文部分内容阅读
在两跳中继蜂窝网络中,为提高频谱利用率,以链路带宽需求为依据,提出了一种动态频率规划算法.综合考虑了信道质量、用户业务速率需求及中继两跳链路的速率匹配,计算不同链路上的带宽需求.根据链路带宽需求,对不同链路上的可用频率资源进行动态分配,在不同中继覆盖区域间进行动态频率复用,使系统频率复用因子可根据系统负载自适应变化.仿真结果表明,与现有频率规划算法相比,该算法在系统频谱效率与小区边缘用户平均吞吐量上都有性能优势.
In the two-hop relay cellular network, a dynamic frequency planning algorithm is proposed based on the bandwidth requirement of the link in order to improve the spectrum utilization rate. Considering the requirements of channel quality, user service rate and the relaying of two-hop links Rate matching to calculate the bandwidth requirements on different links.According to the link bandwidth requirements, the available frequency resources on different links are dynamically allocated, and dynamic frequency reuse is performed between different relay coverage areas to make the system frequency reuse factor Which can be adaptively changed according to the system load.The simulation results show that compared with the existing frequency planning algorithms, this algorithm has performance advantages both in system spectrum efficiency and average throughput of cell edge users.