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arXiv · 2412.10956

Iterative Detection and Decoding for Clustered Cell-Free Massive MIMO Networks

T. Ssettumba·S. Mashdour·L. Landau·P. da Silva·R. C. de Lamare
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Abstract

In this letter, we propose an iterative soft interference cancellation scheme for intra-cluster (ICL) and out-of-cluster (OCL) interference mitigation in user-centric clustered cell-free massive multiple-antenna networks. We propose a minimum mean-square error receive filter with a novel modified parallel interference cancellation scheme to mitigate ICL and OCL interference. Unlike prior work, we model the OCL interference and devise a least squares estimator to perform OCL interference estimation. An iterative detection and decoding scheme that adopts low-density parity check codes and incorporates the OCL interference estimate is developed. Simulations assess the proposed scheme against existing techniques in terms of bit error rate performance.

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T. Ssettumba, S. Mashdour, L. Landau, P. da Silva, R. C. de Lamare. 2024-12-14. Iterative Detection and Decoding for Clustered Cell-Free Massive MIMO Networks. https://arxiv.org/abs/2412.10956

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