Optimal Massive-MIMO-Aided Clustered Base-Station Coordination
نویسندگان
چکیده
A large-scale clustered massive MIMO network is proposed for improving the spectral efficiency of next-generation wireless infrastructure by maximizing its sum-rate. Our solution combines advantages centralized processing architecture and MIMO. Explicitly, divided into multiple clusters; each cluster handled a unit, which connects to certain number MIMO-aided BSs, where only limited information exchanged among user can be served several nearby BSs in user-centric way. We analyze maximum sum-rate with antennas at UEs, relying on optimal transmit precoder matrix BS configured user, frequency-domain power sharing scheme cluster. The optimizations are conceived coordination schemes that were widely studied literature, namely coherent-joint-transmission (CJT) scheme, non-coherent-joint-transmission (NCJT) coordinated-beamfoming/scheduling (CBF/CS) scheme. simulations show CJT achieves 2.2 - 4.5 times higher average than non-cooperative counterpart, while NCJT CBF/CS achieve most factor 1.3 gain. popular signal-to-leakage-and-noise-ratio (SLNR) also extended multi-antenna UE scenario 1.1 1.2
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ژورنال
عنوان ژورنال: IEEE Transactions on Vehicular Technology
سال: 2021
ISSN: ['0018-9545', '1939-9359']
DOI: https://doi.org/10.1109/tvt.2021.3056875