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Analytical Performance Evaluation of Massive MIMO Techniques for SC-FDE Modulations

Cercas, F. ; Fernandes, D. F. ; Dinis, R.

Electronics (Switzerland) Vol. 9, Nº 3, pp. 533 - 533, March, 2020.

ISSN (print): 2079-9292
ISSN (online):

Journal Impact Factor: 2,110 (in )

Digital Object Identifier: 10.3390/electronics9030533

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In the Fifth Generation of telecommunications networks (5G), it is possible to use massive
Multiple Input Multiple Output (MIMO) systems, which require efficient receivers capable of reaching
good performance values. MIMO systems can also be extended to massiveMIMO (mMIMO) systems,
while maintaining their, sometimes exceptional, performance. However, we must be aware that
this implies an increase in the receiver complexity. Therefore, the use of mMIMO in 5G and future
generations of mobile receivers will only be feasible if they use very efficient algorithms, so as to
maintain their excellent performance, while coping with increasing and critical user demands. Having
this in mind, this paper presents and compares three types of receivers used in MIMO systems, for
further use with mMIMO systems, which use Single-Carrier with Frequency-Domain Equalization
(SC-FDE), Iterative Block Decision Feedback Equalization (IB-DFE) and Maximum Ratio Combining
(MRC) techniques. This paper presents and compares the theoretical and simulated performance
values for these receivers in terms of their Bit Error Rate (BER) and correlation factor. While one of
the receivers studied in this paper achieves a BER performance nearly matching the Matched Filter
Bound (MFB), the other receivers (IB-DFE and MRC) are more than 1 dB away from MFB. The results
obtained in this paper can help the development of ongoing research involving hybrid analog/digital
receivers for 5G and future generations of mobile communications.