Scheduling for dual-hop block-fading channels with two source-user pairs sharing one relay

Ammar Zafar, Mohammad Shaqfeh, Mohamed Slim Alouini, Hussein Alnuweiri

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

3 Citations (Scopus)

Abstract

In this paper, we maximize the achievable rate region of a dual-hop network with two sources serving two users independently through a single shared relay. We formulate the problem as maximizing the sum of the weighted long term average throughputs of the two users under stability constraints on the long term throughputs of the source-user pairs. In order to solve the problem, we propose a joint user-and-hop scheduling scheme, which schedules the first or second hop opportunistically based on instantaneous channel state information, in order to exploit multiuser diversity and multihop diversity gains. Numerical results show that the proposed joint scheduling scheme enhances the achievable rate region as compared to a scheme that employs multi-user scheduling on the second-hop alone.

Original languageEnglish
Title of host publication2013 IEEE 78th Vehicular Technology Conference, VTC Fall 2013
DOIs
Publication statusPublished - 1 Dec 2013
Event2013 IEEE 78th Vehicular Technology Conference, VTC Fall 2013 - Las Vegas, NV, United States
Duration: 2 Sep 20135 Sep 2013

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

Other2013 IEEE 78th Vehicular Technology Conference, VTC Fall 2013
CountryUnited States
CityLas Vegas, NV
Period2/9/135/9/13

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Keywords

  • Dual-hop
  • Joint scheduling
  • Multi-hop diversity
  • Multi-user diversity
  • Shared relay

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Zafar, A., Shaqfeh, M., Alouini, M. S., & Alnuweiri, H. (2013). Scheduling for dual-hop block-fading channels with two source-user pairs sharing one relay. In 2013 IEEE 78th Vehicular Technology Conference, VTC Fall 2013 [6692401] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VTCFall.2013.6692401