论文部分内容阅读
将比例公平调度机制推广到多天线多用户下行系统,提出了一种保障公平的资源分配方案和多用户调度机制。基站利用块对角化预编码机制,将多天线下行系统分解为并行无干扰子信道,并根据各个用户的信道状态,选择优化用户集进行传输,从而在保障公平性的同时最大化系统总速率。同时分析了信道反馈错误对该资源分配机制的影响。仿真结果表明,与其他几种用户调度机制相比,该资源分配方案在吞吐量和公平性之间取得了良好的折中。
Propagate proportional fair scheduling mechanism to multi-antenna multi-user downlink system, and propose a fair resource allocation scheme and multi-user scheduling mechanism. The base station uses the block diagonalization precoding mechanism to decompose the multi-antenna downlink system into parallel interference-free sub-channels, and selects and optimizes the user set for transmission according to the channel state of each user, thereby maximizing the total system rate while ensuring fairness . At the same time, the impact of channel feedback error on the resource allocation mechanism is analyzed. The simulation results show that the resource allocation scheme achieves a good trade-off between throughput and fairness compared with other scheduling mechanisms.