Loading [MathJax]/jax/output/HTML-CSS/config.js
Spectral Efficiency of a Frequency-Selective Cell-Free Massive MIMO System With Phase Noise | IEEE Journals & Magazine | IEEE Xplore

Spectral Efficiency of a Frequency-Selective Cell-Free Massive MIMO System With Phase Noise

Publisher: IEEE

Abstract:

This letter studies spectral efficiency of a frequency-selective cell-free massive multiple-input-multiple-output (MIMO) system with phase noise (PN) and imperfect channe...View more

Abstract:

This letter studies spectral efficiency of a frequency-selective cell-free massive multiple-input-multiple-output (MIMO) system with phase noise (PN) and imperfect channel state information. Two linear and low-complexity receivers are considered, namely, time-reversal maximum-ratio combining (TR-MRC) and time-reversal large-scale fading decoding (TR-LSFD). For each receiver, a lower bound on the uplink achievable spectral efficiency (SE) is obtained. From the obtained bounds, it is found that, compared to the TR-MRC receiver, the TR-LSFD receiver can attain a higher SE and the performance gain of the TR-LSFD receiver depends on the number of access points (APs) and the propagation losses between APs and users. Numerical results are provided to corroborate the accuracy of our analysis and the performance superiority of TR-LSFD receiver. Results also show that the effect of PN at users is stronger than the effect of PN at APs on the achievable SE.
Published in: IEEE Wireless Communications Letters ( Volume: 10, Issue: 3, March 2021)
Page(s): 483 - 487
Date of Publication: 03 November 2020

ISSN Information:

Publisher: IEEE

Funding Agency:


References

References is not available for this document.