Skip to content

Resource allocation techniques for OFDMA-based decode-and-forward relaying networks

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

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference, 2008 (VTC Spring 2008), Singapore
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Publication dateMay 2008
Pages1717 - 1721
Number of pages5
DOIs
StatePublished

Publication series

Name
ISSN (Print)15502252

Conference

ConferenceVehicular Technology Conference 2008
CountrySingapore
CitySingapore
Period1/05/08 → …

Abstract

In this paper, we focus on the design of efficient resource allocation algorithms for a multihop cellular network, with orthogonal frequency division multiple access (OFDMA) as downlink transmission technique and utilizing decode-and- forward cooperation strategy. Our objective is to maximize the total capacity based on the constraint of individual transmission power at each transmitter. We also consider users' QoS requirements by maximizing the total capacity while giving users proportional fairness weights according to their data requirements. We show that for each data symbol (at each subcarrier) transmitted by base station, the best relaying strategy is to let only one among all the relay stations perform the relaying task. This is true for both objectives of maximizing total capacity and maximizing capacity with proportional fairness constraint. We then propose efficient greedy algorithms for both centralized and distributed resource allocations based on our analysis. Simulation results indicate that our proposed algorithms effectively enhance the total capacity.

Additional information

Rose publication type: Conference contribution Additional information: With accompanying conference presentation Sponsorship: The work reported in this paper has formed part of the Delivery Efficiency Core Research Programme of the Virtual Centre of Excellence in Mobile and Personal Communications, Mobile VCE, www.mobilevce.com. This research has been funded by EPSRC and by the Industrial Companies who are Members of Mobile VCE. Terms of use: Copyright © 2008 IEEE. Reprinted from IEEE Vehicular Technology Conference, 2008 (VTC Spring 2008). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. Other identifier: 9781424416455

Documents

DOI

Research areas

  • OFDMA

Event

Vehicular Technology Conference 2008

Abbreviated TitleVTC 2008-Spring
Duration1 May 2008 → …
CountrySingapore
CitySingapore

Event: Conference

View research connections

Related faculties, schools or groups