Power control and scheduling under hard deadline constraints for on-off fading channels

Ahmed Ewaisha, Cihan Tepedelenlioglu

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

4 Scopus citations

Abstract

We consider the joint scheduling-and-power- allocation problem of a downlink cellular system. The system consists of two groups of users: real- time (RT) and non-real-time (NRT) users. Given some average power constraint on the base station, the problem is to find an algorithm that satisfies the RT and NRT quality-of-service (QoS) constraints. The RT QoS constraints guarantee the portion of RT packets that miss their deadline are no more than a pre-specified threshold. On the other hand, the NRT QoS is only to guarantee the stability of their queues. We propose a sum-rate- maximizing algorithm that satisfy all QoS and average power constraints. The proposed power allocation policy has a closed form expression for the two groups of users. However, the power policy of the RT users differ in structure from the NRT users. The proposed algorithm is optimal for the on-off channel model with a polynomial-time scheduling complexity. Using extensive simulations, the throughput of the proposed algorithm is shown to exceed existing approaches.

Original languageEnglish (US)
Title of host publication2017 IEEE Wireless Communications and Networking Conference, WCNC 2017 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509041831
DOIs
StatePublished - May 10 2017
Event2017 IEEE Wireless Communications and Networking Conference, WCNC 2017 - San Francisco, United States
Duration: Mar 19 2017Mar 22 2017

Other

Other2017 IEEE Wireless Communications and Networking Conference, WCNC 2017
CountryUnited States
CitySan Francisco
Period3/19/173/22/17

ASJC Scopus subject areas

  • Engineering(all)

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    Ewaisha, A., & Tepedelenlioglu, C. (2017). Power control and scheduling under hard deadline constraints for on-off fading channels. In 2017 IEEE Wireless Communications and Networking Conference, WCNC 2017 - Proceedings [7925933] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCNC.2017.7925933