摘要
线性预编码提高了多天线UWB系统的传输速率和误码率性能。通过选择合适的参数,系统最大限度地达到最大吞吐量,而多天线技术提高了系统空间分集增益。针对传统的ZF算法限制误码率性能提高的问题,提出了一种新的预编码方案,实现简单。仿真结果表明,新算法进一步减小系统误码率,提高了系统性能,较传统的ZF算法性能更为优越。
Linear precoding improves the transmission rate and bit error rate for multi-antenna UWB system. The maximum reach- able throughput of the system can be achieved by using the optimal parameters, and the multi-antenna mechanism provides full spatial diversity gain. Because the improvement of the bit error rate performance is limited for the ZF algorithm,a new preeoding scheme is pro- posed and it is easy to implement. The simulation results show that the new algorithm reduces the system mean BER and consequently improves the system performance.
出处
《无线电通信技术》
2013年第1期52-54,共3页
Radio Communications Technology
