@inproceedings{0ad179c7aaab40f98ec758647f104681,
title = "Analyzing the Channel Aging Effects on Massive MIMO Downlink by Ray-Tracing",
abstract = "The influence of channel aging effects on massive Multiple-Input Multiple-Output (MIMO) downlink performance for a single-cell urban scenario is investigated by ray-tracing simulations. The scenario comprises 256 base station antennas and 64 single antenna users, which are mobile and travel with a constant speed. Ray-tracing simulations are used to calculate the instantaneous channels in every 100 microseconds for a 10 milliseconds time span. The average downlink data rate in the network is calculated at each time instance. The deterioration of the performance is demonstrated when the channel state information (CSI) available at the base station gradually deviates from the actual channel. The procedure is repeated for different user speeds and different numbers of transmitter antennas. The results are compared to a statistical channel aging model where the aging effect is captured by introducing a correlation coefficient and a random error parameter to a previously known channel matrix.",
keywords = "Downlink, Massive MIMO, Ray tracing, Time-varying channels",
author = "Taygur, {Mehmet Mert} and Eibert, {Thomas F.}",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 29th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2018 ; Conference date: 09-09-2018 Through 12-09-2018",
year = "2018",
month = dec,
day = "18",
doi = "10.1109/PIMRC.2018.8580703",
language = "English",
series = "IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2018",
}