Ergodic Rate Analysis of Massive MIMO Systems in K-Fading Environment; IEEE 84th Vehicular Technology Conference (VTC Fall)

Ergodic Rate Analysis of Massive MIMO Systems in K-Fading Environment; IEEE 84th Vehicular Technology Conference (VTC Fall)

Detalhes bibliográficos
Parent link:IEEE 84th Vehicular Technology Conference (VTC Fall).— 2017.— [7881002, 6 p.]
Autor principal: Muhammad T. M. Tauseef Mushtag
Autor Corporativo: Томский политехнический университет Институт кибернетики, ИК
Outros Autores: Syed A. H. Ali Hassan, Dzhayakodi Arachshiladzh D. N. K. Dushanta Nalin Kumara
Resumo:Title screen
Massive MIMO (multiple-input multiple-output) has been identified as a key technology for next generation cellular systems. This paper considers a multi-cellular system with large antenna arrays at the base station (BS) and single antenna user terminals (UTs), operating in a time division duplex (TDD) mode, under a composite fading- shadowing environment. In the uplink transmission, the pilot contamination occurs as the UTs transmit pilots to their respective BSs, and the serving BS estimates the channel state information using a minimum mean squared error estimation. This channel information is further used to design beamforming (BF) and regularized zero-forcing (RZF) precoders for downlink (DL) transmission. We analyze the ergodic rates for DL transmission using different precoding schemes and varying shadowing intensity. It has been observed that shadowing does not average out as we increase the number of antennas as opposed to multi-path fading, and the severity of shadowing badly affects the performance of massive MIMO systems.
Режим доступа: по договору с организацией-держателем ресурса
Idioma:inglês
Publicado em: 2017
Assuntos:
труды учёных ТПУ
электронный ресурс
shadow mapping
MIMO
antennas
channel estimation
downlink
fading channels
uplink
Acesso em linha:https://doi.org/10.1109/VTCFall.2016.7881002
Formato: Recurso Electrónico Capítulo de Livro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=656782

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