Theoretical Performance Limits of Massive MIMO with Uncorrelated Rician Fading Channels

Luca Sanguinetti, Abla Kammoun, Merouane Debbah

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


This work considers a multicell Massive MIMO network with L cells, each comprising a BS with M antennas and K single-antenna user equipments. Within this setting, we are interested in deriving approximations of the achievable rates in the uplink and downlink under the assumption that single-cell linear processing is used at each BS and that each intracell link forms an uncorrelatedMIMO Rician fading channel matrix; that is, with a deterministic line-of-sight (LoS) path and a stochastic non-line-of-sight component describing a spatial uncorrelated multipath environment. The analysis is conducted assuming that N and K grow large with a given ratio N/K under the assumption that the data transmission in each cell is affected by channel estimation errors, pilot contamination, an arbitrary large scale attenuation and LoS components. Numerical results are used to prove that the approximations are asymptotically tight, but accurate for systems with finite dimensions under different operating conditions. The asymptotic results are also used to evaluate the impact of LoS components. In particular, we exemplify how the number of antennas for achieving a target rate can be substantially reduced with LoS links of only a few dBs of strength.
Original languageEnglish (US)
Pages (from-to)1939-1955
Number of pages17
JournalIEEE Transactions on Communications
Issue number3
StatePublished - Nov 29 2018

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was partially supported by the University of Pisa under the PRA 2018-2019 Research Project CONCEPT and also by the H2020-ERC PoCCacheMire project (grant 727682).


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