Abstract
In this paper, a low complexity polynomial expansion (PE) detector for massive multi-input multi-output (MIMO) uplink transmissions is proposed. In contrast to most massive MIMO systems in the literature, where single-antenna user equipment's (UEs) are assumed, multiple-antenna UEs are employed in this paper. Furthermore, each link between a user and the base station forms a jointly correlated Rician fading channel. The PE detector reduces the complexity of the minimum mean square error (MMSE) detector by replacing the matrix inversion with an approximate matrix polynomial. In the design of the low complexity PE detector, the approximations of the moments of the channel Gram matrix are needed. We use operator- valued free probability to derive these approximations. The low complexity PE detector is easy to compute. Simulation results show that it can achieve performance close to the MMSE detector.
Recommended Citation
A. A. Lu et al., "Low Complexity Polynomial Expansion Detector for Massive MIMO Uplink with Multiple-antenna Users," Proceedings - IEEE Global Communications Conference, GLOBECOM, article no. 7417105, Institute of Electrical and Electronics Engineers, Jan 2015.
The definitive version is available at https://doi.org/10.1109/GLOCOM.2014.7417105
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Low complexity; Massive MIMO; Operator-valued free probability; Polynomial expansion (PE) detector
International Standard Serial Number (ISSN)
2576-6813; 2334-0983
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jan 2015
