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Efficient channel feedback methods are becoming more important in limited-feedback multi-user multiple input multiple output (MU-MIMO) systems. We propose a new dynamic channel feedback control (DEFCON) scheme, which efficiently allocates the limited system resources for channel feedback to appropriate users. The main features of the proposed DEFCON scheme are as follows. Firstly, the channel feedback...
Distributed wireless communication system (DWCS) is one of the candidate architectures for future mobile communication system. In this paper, based on the TDD DWCS, a new cell structure is proposed with universal frequency reuse. In the proposed structure, the cells are divided into 2 groups, and when one group is in the uplink period, the other transmits the downlink data. All the base station share...
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