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Maximal‐ratio combining detection in massive multiple‐input multiple‐output systems with accurate probability distribution function

Lookup NU author(s): Dr Ditsapon Chumchewkul, Professor Harris Tsimenidis



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


This letter derives the probability distribution function (PDF) of received symbols for orthogonal frequency‐division multiplexing (OFDM) based massive multiple‐input, multiple‐output (MMIMO) systems, which uses maximal‐ratio combining (MRC) detection. The effects of noise and interferences are evaluated through random variables, and the PDF is then derived from their joint probability and characteristic functions. The bit error rate (BER) using Binary and Quadrature Phase Shift Keying (BPSK, QPSK), and M‐ary Quadrature Amplitude Modulation (QAM) waveforms is then analyzed by using this PDF. Simulation and analytical results confirm that the derived equations provided accurate PDF and BER, and therefore, can be used efficiently to evaluate performance of OFDM‐MMIMO systems.

Publication metadata

Author(s): Chumchewkul D, Tsimenidis C

Publication type: Letter

Publication status: Published

Journal: Electronics Letters

Year: 2021

Volume: 57

Issue: 9

Pages: 381-383

Print publication date: 01/04/2021

Online publication date: 22/03/2021

Acceptance date: 21/02/2021

ISSN (print): 0013-5194

ISSN (electronic): 1350-911X


DOI: 10.1049/ell2.12138