多用户MIMO算法仿真，包括BD,ZF,MMSE等-multiuser MIMO simulation

本代码给出了在多用户mimo系统中功率分配的策略，包括注水法和等功率分配法，并得到了响应的信道容量。-This code gives the power distribution in a multi-user mimo systems strategy, including water injection method and equal power allocation method and the response capacity of the channel.

与在空间域上通过适当信号处理来分离多用户相比，下行多用户多输入多输出（MU-MIMO）传输技术因其显著增加系统容量的潜力近来已经得到广泛关注。令人遗憾的是，这些技术需要准确的信道状态信息保证其正常运行。然而在实践中，由于在FDD系统中反馈信道的有限容量导致精确的CSIT是难以获得的。本文研究的系统采用MU-MIMO下行链路传输中的分解有限反馈。特别是，支持能够处理用户间干扰的方案的必不可少的信息是确定的，根据把残余的用户间干扰功率最大限度地减小来设计最佳的码本。模拟结果表明，一般的有限反馈对通过

MU-MIMO is widely considered a key technology for system capacity improvement in modern wireless networks. In contrast to SU-MIMO, where the spatial multiplexing gain is confined to a single user, MU-MIMO allows multiple users to be co-sche

very useful article about MU-MIMO THP to achieve near capacity -Tomlinson Harashima Precoding (THP) for Multi- User Multiple Input Multiple Output (MU-MIMO) system has been proposed as an effective way to achieve near capacity to the theoretic