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- W4286849749 abstract "This paper presents a novel strategy to decentralize the soft detection procedure in an uplink cell-free massive multiple-input-multiple-output network. We propose efficient approaches to compute the a posteriori probability-per-bit, exactly or approximately when having a sequential fronthaul. More precisely, each access point (AP) in the network computes partial sufficient statistics locally, fuses it with received partial statistics from another AP, and then forwards the result to the next AP. Once the sufficient statistics reach the central processing unit, it performs the soft demodulation by computing the log-likelihood ratio (LLR) per bit, and then a channel decoding algorithm (e.g., a Turbo decoder) is utilized to decode the bits. We derive the distributed computation of LLR analytically." @default.
- W4286849749 created "2022-07-25" @default.
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- W4286849749 date "2021-11-30" @default.
- W4286849749 modified "2023-09-29" @default.
- W4286849749 title "Distributed Computation of A Posteriori Bit Likelihood Ratios in Cell-Free Massive MIMO" @default.
- W4286849749 doi "https://doi.org/10.48550/arxiv.2111.15568" @default.
- W4286849749 hasPublicationYear "2021" @default.
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