Distributed MIMO Cooperative Transmission Technique and Its Performance

This paper presents a comprehensive introduction of the distributed MIMO cooperative transmission technique which has been developed under the framework of national 5G research & development (4-year project of 2015 2018) funded by Ministry of Internal Affairs and Communications (MIC), Japan. The distributed MIMO cooperative transmission includes single-user space-time block code transmit diversity (STBC-TD), multi-user minimum mean square error (MMSE) based filtering jointly used with eigenmode filtering obtained by singular value decomposition (SVD), called MMSE-SVD in short, and blind selected mapping (blind SLM). The bit error rate (BER), link capacity, and peak-to-average power ratio (PAPR)-complexity tradeoff performances of distributed MIMO cooperative transmission, evaluated by extensive numerical and computer simulation, are presented. Furthermore, the interference coordination techniques, i.e., the user clustering and the decentralized inter-cell (or inter-BS) interference coordination (ICIC), for further improving the area spectrum efficiency and for enhancing the flexible and scalable deployment of distributed MIMO system are also presented.