Achievable throughput of multi-mode multiuser MIMO with imperfect CSI constraints
作者： Jeffrey G. Andrews , Robert W. Heath , Jun Zhang , Marios Kountouris
DOI: 10.1109/ISIT.2009.5205915
关键词:
摘要: In the multiple-input multiple-output (MIMO) broadcast channel with imperfect state information (CSI), neither capacity nor optimal transmission technique have been fully discovered. this paper, we derive achievable ergodic rates for a multi-antenna fading when CSI at transmitter (CSIT) is delayed and quantized. It shown that not all possible users should be supported spatial division multiplexing due to residual inter-user interference caused by CSIT. Based on derived rates, propose multi-mode strategy maximize throughput, which adaptively adjusts number of active based statistics information.
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