Opportunistic temporal fair mode selection and user scheduling for full-duplex systems

Shahram Shahsavari, Farhad Shirani, Mohammad A. Amir Khojastepour, Elza Erkip

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

Abstract

In-band full-duplex (FD) communications - enabled by recent advances in antenna and RF circuit design - has emerged as one of the promising techniques to improve data rates in wireless systems. One of the major roadblocks in enabling high data rates in FD systems is the inter-user interference (IUI) due to activating pairs of uplink and downlink users at the same time-frequency resource block. Opportunistic user scheduling has been proposed as a means to manage IUI and fully exploit the multiplexing gains in FD systems. In this paper, scheduling under long-term and short-term temporal fairness for single-cell FD wireless networks is considered. Temporal fair scheduling is of interest in delay-sensitive applications, and leads to predictable latency and power consumption. The feasible region of user temporal demand vectors is derived, and a scheduling strategy maximizing the system utility while satisfying long-term temporal fairness is proposed. Furthermore, a short-term temporal fair scheduling strategy is devised which satisfies user temporal demands over a finite window-length. It is shown that the strategy achieves optimal average system utility as the window-length is increased asymptotically. Subsequently, practical construction algorithms for long-term and shortterm temporal fair scheduling are introduced. Simulations are provided to verify the derivations and investigate the multiplexing gains. It is observed that using successive interference cancellation at downlink users improves FD gains significantly in the presence of strong IUI.

Original languageEnglish (US)
Title of host publication2019 IEEE 30th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC Workshops 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538693582
DOIs
StatePublished - Sep 2019
Event30th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC Workshops 2019 - Istanbul, Turkey
Duration: Sep 8 2019 → …

Publication series

Name2019 IEEE 30th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC Workshops 2019

Conference

Conference30th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC Workshops 2019
CountryTurkey
CityIstanbul
Period9/8/19 → …

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Computer Networks and Communications

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    Shahsavari, S., Shirani, F., Amir Khojastepour, M. A., & Erkip, E. (2019). Opportunistic temporal fair mode selection and user scheduling for full-duplex systems. In 2019 IEEE 30th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC Workshops 2019 [8880848] (2019 IEEE 30th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC Workshops 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PIMRCW.2019.8880848