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MULTI-CELL INTERFERENCE MITIGATION VIA COORDINATED SCHEDULING AND POWER ALLOCATION IN DOWNLINK ODMA NETWORKS
MULTI-CELL INTERFERENCE MITIGATION VIA COORDINATED SCHEDULING AND POWER ALLOCATION IN DOWNLINK ODMA NETWORKS
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机译:通过下行ODMA网络中的协调调度和功率分配实现多小区干扰缓解
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摘要
A multi-cell Orthogonal Frequency-Division Multiple Access (OFDMA) based wireless system and method with full spectral reuse co-channel interference mitigation via base station coordination in a downlink channel includes a plurality of base stations configured to handle communications with mobile units. A central controller is configured to mitigate interference between base stations via jointly optimizing coordinated scheduling and power allocation in accordance with a sub-optimal iterative solution. Five methods provide the solution, which include: 1) Improved Iterative Water-Filling (I-IWF); 2) Iterative Spectrum Balancing (ISB); 3) Successive Convex Approximation for Low-complexity (SCALE); 4) Opportunistic Base Station Selection (OBSS) and 5) Per-tone binary power control (PT-BPC).
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