TY - GEN
T1 - Line-of-Sight and Pilot Contamination Effects on Correlated Multi-Cell Massive MIMO Systems
AU - Boukhedimi, Ikram
AU - Kammoun, Abla
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2019/2/21
Y1 - 2019/2/21
N2 - This work considers the uplink (UL) of a multi- cell massive MIMO system with L cells, having each K mono-antenna users communicating with an K-antennas base station (BS). The channel model involves Rician fading with distinct per- user Rician factors and channel correlation matrices and takes into account pilot contamination and imperfect CSI. The objective is to evaluate the performances of such systems with different single-cell and multi-cell detection methods. In the former, we investigate MRC and single-cell MMSE (S-MMSE); as to the latter, we are interested in multi-cell MMSE (M-MMSE) that was recently shown to provide unbounded rates in Rayleigh fading. The analysis is led assuming the infinite - limit and yields informative closed- form approximations that are substantiated by a selection of numerical results for finite system dimensions. Accordingly, these expressions are accurate and provide relevant insights into the effects of the different system parameters on the overall performances.
AB - This work considers the uplink (UL) of a multi- cell massive MIMO system with L cells, having each K mono-antenna users communicating with an K-antennas base station (BS). The channel model involves Rician fading with distinct per- user Rician factors and channel correlation matrices and takes into account pilot contamination and imperfect CSI. The objective is to evaluate the performances of such systems with different single-cell and multi-cell detection methods. In the former, we investigate MRC and single-cell MMSE (S-MMSE); as to the latter, we are interested in multi-cell MMSE (M-MMSE) that was recently shown to provide unbounded rates in Rayleigh fading. The analysis is led assuming the infinite - limit and yields informative closed- form approximations that are substantiated by a selection of numerical results for finite system dimensions. Accordingly, these expressions are accurate and provide relevant insights into the effects of the different system parameters on the overall performances.
UR - http://hdl.handle.net/10754/653009
UR - https://ieeexplore.ieee.org/document/8647420
UR - http://www.scopus.com/inward/record.url?scp=85063454135&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2018.8647420
DO - 10.1109/GLOCOM.2018.8647420
M3 - Conference contribution
SN - 9781538647271
BT - 2018 IEEE Global Communications Conference (GLOBECOM)
PB - IEEE
ER -