Networked MIMO with clustered linear precoding
作者： Jun Zhang , Runhua Chen , J.G. Andrews , A. Ghosh , R.W. Heath
关键词: Computer science 、 Topology 、 MIMO 、 Base station 、 Precoding 、 Cellular network 、 Computer network 、 Channel code 、 Base transceiver station 、 Telecommunications link
摘要: A clustered base transceiver station (BTS) coordination strategy is proposed for a large cellular MIMO network, which includes full intra-cluster coordination-to enhance the sum rate-and limited inter-cluster reduce interference cluster edge users. Multi-cell block diagonalization used to coordinate transmissions across multiple BTSs in same cluster. To satisfy per-BTS power constraints, three combined precoder and allocation algorithms are with different performance complexity tradeoffs. For coordination, area chosen balance fairness users achievable rate. It shown that small size (about 7 cells) sufficient obtain most of rate benefits from while greatly relieving channel feedback requirement. Simulations show efficiently reduces provides considerable gain networks.
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