Channel hardening characterises the diminishing influence of small scale fading on large scale antenna systems. The effective massive MIMO time domain channel is introduced and applied to a maximum diversity channel with rectangular power delay profile. This model bounds channel hardening and allows a proper interpretation from a radio design perspective. The reduced variability of the effective channel enables power inversion to obtain a downlink channel that only depends on the large scale fading properties.
@article{arxiv.1905.07555,
title = {Power Inversion of the Massive MIMO Channel},
author = {Jens Abraham and Torbjörn Ekman},
journal= {arXiv preprint arXiv:1905.07555},
year = {2019}
}
Comments
5 pages, 2 figures, 40th WIC / IEEE SP Symposium on Information Theory in the Benelux (SITB 2019)