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

Y Pan, AR Nix, MA Beach

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

17 Citations (Scopus)
477 Downloads (Pure)

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.
Translated title of the contributionResource allocation techniques for OFDMA-based decode-and-forward relaying networks
Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference, 2008 (VTC Spring 2008), Singapore
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1717 - 1721
Number of pages5
DOIs
Publication statusPublished - May 2008
EventVehicular Technology Conference 2008 - Singapore, Singapore
Duration: 1 May 2008 → …

Publication series

Name
ISSN (Print)15502252

Conference

ConferenceVehicular Technology Conference 2008
Abbreviated titleVTC 2008-Spring
CountrySingapore
CitySingapore
Period1/05/08 → …

Bibliographical note

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).

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Other identifier: 9781424416455

Keywords

  • OFDMA

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