摘要
以最大化信道容量为目标,基于遗传算法设计了一种在多用户M IMO-OFDM系统中的动态天线和子载波联合分配的方案.通过在每个子载波上将发射天线分配给不同的用户,充分利用M IMO提供的多用户分集增益.仿真结果表明:该方案与穷举法相比,有较小的性能损失,但是复杂度降低较明显.
A genetic algorithm based subcarrier and antenna allocation in multiuser MIMO - OFDM system was proposed to maximize the system capacity. Dynamic allocation of per-subcarrier antennas exploited the multiuser diversity of MIMO efficiently. The results of simulation showed that the proposed algorithm achieved about 1dB loss compared with the optimal algorithm, while its complexity was much lower.
出处
《上海师范大学学报（自然科学版）》
2009年第5期484-488,共5页
Journal of Shanghai Normal University(Natural Sciences)
基金
上海市教委项目(CL200516)
