Link-level performance of rate-splitting based downlink multiuser MISO systems

Hongzhi Chen, De Mi, Zheng Chu, Pei Xiao, Yin Xu, Dazhi He

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

10 Citations (Scopus)

Abstract

This work provides the first link level performance evaluation of the Rate-Splitting (RS) based precoding scheme in a downlink multi-user multiple input single output (MU-MISO) system. Contrary to the existing works on the RS precoding that mostly focused on the sum rate or minimum rate maximization, this work bridges the optimization results with the bit error rate (BER) performance, initiating the RS software implementation. We demonstrate that, in an overloaded scenario, the conventional precoding schemes suffer from the BER error floor that corresponds to their rate saturation, which can be overcome by the RS-based strategy that adding the message decodability of certain users with the interference-limited message rate.

Original languageEnglish
Title of host publication2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728144900
DOIs
Publication statusPublished - Aug 2020
Externally publishedYes
Event31st IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2020 - Virtual, London, United Kingdom
Duration: 31 Aug 20203 Sept 2020

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2020-August

Conference

Conference31st IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2020
Country/TerritoryUnited Kingdom
CityVirtual, London
Period31/08/203/09/20

Keywords

  • Link-level simulation
  • MISO-BC
  • Optimization
  • Overloaded scenario
  • Rate-splitting
  • Software implementation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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