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- W3177119820 abstract "Conventional uplink equalization in massive MIMO systems relies on a centralized baseband processing architecture. However, as the number of base station antennas increases, centralized baseband processing architectures encounter two bottlenecks, i.e., the tremendous data interconnection and the high-dimensional computation. To tackle these obstacles, decentralized baseband processing was proposed for uplink equalization, but only applicable to the scenarios with unpractical white Gaussian noise assumption. This paper presents an uplink linear minimum mean-square error (L-MMSE) equalization method in the daisy chain decentralized baseband processing architecture under colored noise assumption. The optimized L-MMSE equalizer is derived by exploiting the block coordinate descent method, which shows near-optimal performance both in theoretical and simulation while significantly mitigating the bottlenecks." @default.
- W3177119820 created "2021-07-05" @default.
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- W3177119820 date "2021-06-23" @default.
- W3177119820 modified "2023-09-27" @default.
- W3177119820 title "Decentralized Linear MMSE Equalizer Under Colored Noise for Massive MIMO Systems" @default.
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- W3177119820 doi "https://doi.org/10.48550/arxiv.2106.12416" @default.
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