@inproceedings{5ca19a0aed7f4e69886217f5894ea186,
title = "On the Performance of Cell-Free Massive MIMO in Ricean Fading (Invited Paper)",
abstract = "We consider a time-division duplex cell-free massive MIMO system in which many multiple-antenna users are simultaneously served by many multiple-antenna access points (APs) via simple maximum-ratio processing. Unlike legacy cellular systems, the propagation channel in cell-free systems likely to have considerably higher line-of-sight (LOS) probability to each user. Thus, in this work, the propagation channel is modeled via the Ricean distribution, which includes a LOS component plus a non-LOS component. The Ricean K-factors vary with the geometrical locations of the users relative with the locations of the APs. The system performance in terms of the achievable rate is investigated taking into account imperfect channel knowledge. In addition, power control and access point selection schemes are proposed to improve the performance, as well as, to reduce the backhaul requirements in cell-free massive MIMO systems.",
keywords = "Cell-free massive MIMO, Conjugate beamforming, LOS components, Ricean fading, Time-division duplexing",
author = "Ngo, {Hien Quoc} and Harsh Tataria and Michail Matthaiou and Larsson, {Erik G.} and Shi Jin",
year = "2019",
month = feb,
day = "21",
doi = "10.1109/ACSSC.2018.8645336",
language = "English",
isbn = "978-1-5386-9219-6",
pages = "980--984",
booktitle = "IEEE International Conference on Signals, Systems, and Computers 2018 (IEEE ASILOMAR): Proceedings",
}