@inproceedings{db0553bfba28462a8295ba614c41f101,
title = "Coherence time of wireless channels with large antenna arrays",
abstract = "In this work, energy coherence time, which is defined to be the coherence time of the channel quality information (CQI), is studied as a function of the number of antennas in a receiver with a large antenna array. It is found that, as a function of the number of receiver antennas, the energy coherence time can be much larger than the inverse of the Doppler frequency associated with the propagation environment. Numerical studies with representative values for cellular systems indicate that the net reduction in the frequency of adapting to changes in channel quality can be orders of magnitude higher with practical large antenna arrays.",
keywords = "Channel estimation, Channel model, Coherence time, Massive MIMO",
author = "Mainak Chowdhury and Junyoung Nam and Goldsmith, {Andrea J.}",
note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 2017 IEEE Wireless Communications and Networking Conference, WCNC 2017 ; Conference date: 19-03-2017 Through 22-03-2017",
year = "2017",
month = may,
day = "10",
doi = "10.1109/WCNC.2017.7925737",
language = "English (US)",
series = "IEEE Wireless Communications and Networking Conference, WCNC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2017 IEEE Wireless Communications and Networking Conference, WCNC 2017 - Proceedings",
address = "United States",
}