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| An Adaptive Precoding Technology for MIMO Cluster System |
| LI Xiu-Na, LUO Han-Wen, DING Ming, LIU Wei, MA Ji-Peng |
| (Department of Electronics and Communication Engineering, Shanghai Jiaotong University, Shanghai 200240, China) |
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Abstract An efficient precoding technology was proposed for multicell multipleinput multipleoutput (MIMO) system consisting of several clusters. According to the variation of channel state information (CSI) in two contiguous slots, the central processor determines users’ precoding codeword between two precoding schemes and uses extra 1 bit overhead to indicate the selection scheme. The simulation results show that the proposed scheme can achieve better throughput performance and cut down the sum backhaul overhead than the traditional schemes.
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Received: 04 June 2011
Published: 28 June 2012
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