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Published in:
2010 | OriginalPaper | Chapter
System Evaluation of PMI Feedback Schemes for MU-MIMO Pairing
Authors : Yinggang Du, Jianfei Tong, Jing Zhang, Sheng Liu
Published in: Access Networks
Publisher: Springer Berlin Heidelberg
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A Best Companion Cluster (BCC) user terminal (UE) feedback scheme for Multi-User Multi-Input-Multi-Output (MU-MIMO) pairing is proposed in this paper. With this scheme, one UE should feedback both a preferred Precoding Matrix Index (PMI) and a cluster index with least interference to it. The system level simulation results show that this scheme can make a reasonable tradeoff between feedback overhead and throughput, especially when the system load is not so heavy.