|Title of host publication||IEEE Vehicular Technology Conference, 2008 (VTC Spring 2008), Singapore|
|Publisher or commissioning body||Institute of Electrical and Electronics Engineers (IEEE)|
|Pages||1717 - 1721|
|Number of pages||5|
|State||Published - May 2008|
|Event||Vehicular Technology Conference 2008 - Singapore, Singapore|
|Conference||Vehicular Technology Conference 2008|
|Abbreviated title||VTC 2008-Spring|
|Period||1/05/08 → …|
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.
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.
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 email@example.com.
By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
Other identifier: 9781424416455
Vehicular Technology Conference 2008
|Abbreviated Title||VTC 2008-Spring|
|Duration||1 May 2008 → …|