Joint mode and rate adaptation for asymmetric full-duplex communications in WLANs

Mohammed Hirzallah, Wessam Afifi, Marwan M Krunz

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

1 Scopus citations

Abstract

We consider the application of asymmetric full-duplex (AFD) communications in wireless local area networks (WLANs), exemplified by a Wi-Fi system. A full-duplex (FD)-enabled Wi-Fi access point communicates simultaneously uplink (UL) and downlink (DL) with a pair of half-duplex (HD) Wi-Fi stations (STAs). AFD enhances spectrum efficiency and reduces latency for STAs; however, it faces challenges related to node selection, switching between AFD and HD modes, and rate control. In this paper, we propose the \textit{asymmetric FD-mode and rate adaptation} (AFRA) scheme. AFRA relies on partially observable Markov decision process (POMDP) to adapt the UL and DL transmission rates as well as the transmission mode (i.e., AFD or HD; UL-only or DL-only), considering the future expected channel and interference conditions. Our simulation results indicate that AFRA outperforms classical rate-adaptation schemes and achieves up to 95% of the optimal performance of AFD communications.

Original languageEnglish (US)
Title of host publication2018 IEEE International Conference on Communications, ICC 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Volume2018-May
ISBN (Print)9781538631805
DOIs
StatePublished - Jul 27 2018
Event2018 IEEE International Conference on Communications, ICC 2018 - Kansas City, United States
Duration: May 20 2018May 24 2018

Other

Other2018 IEEE International Conference on Communications, ICC 2018
CountryUnited States
CityKansas City
Period5/20/185/24/18

Keywords

  • Asymmetric full-duplex
  • Joint rate and duplex-mode control
  • TXOP sharing

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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    Hirzallah, M., Afifi, W., & Krunz, M. M. (2018). Joint mode and rate adaptation for asymmetric full-duplex communications in WLANs. In 2018 IEEE International Conference on Communications, ICC 2018 - Proceedings (Vol. 2018-May). [8422502] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC.2018.8422502