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Power Inversion of the Massive MIMO Channel
Jens Abraham, Torbjörn Ekman · 2019-05-18 · via cs.IT updates on arXiv.org

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.

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