Abstract:Resumo-Neste trabalho, apresentamos técnicas iterativas de seleção de pontos de acesso (PAs) (SPA), pré-codificação linear minimum mean-square error (MMSE) e alocação de potência para sistemas de múltiplas antenas livres de células (cell-free). Consideramos o downlink com usuários com uma antena e PAs com múltiplas antenas. Desenvolvemos uma estratégia, onde usamos um pré-codificador MMSE junto com alocação de potência uniforme ou ótima que maximiza a mínima taxa por usuário. Resultados mostram que a técnica p… Show more
“…Both approaches require the formulation and solution of geometric programming (GP) which is computationally demanding. In [75,76], the optimal power allocation is found through monotonic optimization whereas in [77] convex optimization is used. Both techniques are computationally costly and require a large number of iterations.…”
List of AbreviationsASR Average Sum Rate AWGN Additive White Gaussian Noise BD Block Diagonalization BS Base Station CDMA Code Division Multiple Access CSIT Channel State Information at the Transmitter
“…Both approaches require the formulation and solution of geometric programming (GP) which is computationally demanding. In [75,76], the optimal power allocation is found through monotonic optimization whereas in [77] convex optimization is used. Both techniques are computationally costly and require a large number of iterations.…”
List of AbreviationsASR Average Sum Rate AWGN Additive White Gaussian Noise BD Block Diagonalization BS Base Station CDMA Code Division Multiple Access CSIT Channel State Information at the Transmitter
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