MIMO MRT-MRC系统最新研究进展

An overview of MIMO MRT-MRC system

多径衰落和共道干扰是影响无线通信质量的两个主要因素,多输入多输出最大比传输-最大比合并(MIMO MRT-MRC)系统由于能够最大化接收机输出端的信噪比(SNR)而得到广泛研究.最近学术界提出了分布式的波束成型技术,该技术能够有效解决无线通信业务配置多天线困难的问题,同时兼具MIMO MRT-MRC系统的优点而成为学术界的研究热点.本研究对上述两种技术已有的研究成果进行了全面阐述,并讨论了存在的公开研究问题.

Multi-fading and co-channel interference are the main factors that affect the QoS of wireless communications. Multiple-input multiple-output maximal ratio transmission maximal-maximal ratio combing （MIMO MRT-MRC） system can maximize the output SNR of the receiver and receive considerable attention. More recently, to effectively solve the difficulty of the deployment of multiple antennas for some service application, the distributed beamforming technique is proposed. Note that such technique has the similar advantages as MIMO MRT-MRC. This article presents a comprehensive overview of such schemes and many research results at this field are provided.