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MIMO downlink with base station coordination in a cellular network is considered. In centralized coordinated transmission from a cluster of base stations, the channel state information (CSI) of users needs to be sent to a central processor for user scheduling and resource allocation. Real time CSI feedback from the users to their home base station and from the base stations to the central processor...
This paper investigates the spatial multiuser scheduling strategies that apply different pairing criteria to select a pair of users carrying out transmission simultaneously in virtual MIMO (VMIMO) systems. Five kinds of criteria are described and compared, which are categorized as channel correlation minimization, bit error rate (BER) minimization and capacity maximization depending on their diverse...
We consider the downlink of a wireless system with an M-antenna base station and K single-antenna users. A limited feedback-based scheduling and precoding scenario is considered that builds on the multiuser random beamforming (RBF). Such a scheme was shown to yield the same capacity scaling, in terms of multiplexing and multiuser diversity gain, as the optimal full CSIT-based (channel state information...
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