Achievable sum-rate of multiuser massive MIMO downlink in ricean fading channels

Weiqiang Tan, Shi Jin, Jue Wang, Michail Matthaiou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

We investigate the achievable ergodic sum-rate of multi-user multiple-input multiple-output systems in Ricean fading channels. We first derive a lower bound on the average signal-to-leakage-and-noise ratio by utilizing the Mullen's inequality, which is then used to analyze the effect of channel mean information on the achievable sum-rate. With these results, a novel statistical-eigenmode space-division multipleaccess downlink transmission scheme is proposed. For this scheme, we derive an exact closed-form expression for the achievable ergodic sum-rate. Our results show that the achievable ergodic sum-rate converges to a saturation value in the high signal-to-noise ratio (SNR) region and reaches to a lower limit value in the lower Ricean K-factor range. In addition, we present tractable upper and lower bounds, which are shown to be tight for any SNR and Ricean K-factor value. Finally, the theoretical analysis is validated via numerical simulations.
Original languageEnglish
Title of host publication2015 IEEE International Conference on Communications (ICC)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Electronic)978-1-4673-6432-4
DOIs
Publication statusPublished - Sep 2015

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    Tan, W., Jin, S., Wang, J., & Matthaiou, M. (2015). Achievable sum-rate of multiuser massive MIMO downlink in ricean fading channels. In 2015 IEEE International Conference on Communications (ICC) Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ICC.2015.7248528