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Resource allocation in multiuser cooperative OFDM system using forced cost based decisions

Munasinghe, Gayan, Jayalath, Dhammika, & Ziri-Castro, Karla I. (2012) Resource allocation in multiuser cooperative OFDM system using forced cost based decisions. In 2012 International Symposium on Communications and Information Technologies (ISCIT), 2-5 October 2012, Holiday Inn, Gold Coast, QLD.

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Abstract

A sub optimal resource allocation algorithm for Orthogonal Frequency Division Multiplexing (OFDM) based cooperative scheme is proposed. The system consists of multiple relays. Subcarrier space is divided into blocks and relays participating in cooperation are allocated specific blocks to be used with a user. To ensure unique subcarrier assignment system is constrained such that same block cannot be used by more than one user. Users are given fair block assignments while no restriction for maximum number of blocks a relay can employ is given. Forced cost based decisions [1] are used for block allocation. Simulation results show that this scheme outperforms a non cooperating scheme with sequential allocation with respect to power usage.

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ID Code: 54325
Item Type: Conference Paper
Additional URLs:
Keywords: Resource Allocation, Forced Cost, Cooperative Communication, OFDM
ISBN: 9781467311571
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Electrical and Electronic Engineering not elsewhere classified (090699)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 IEEE
Deposited On: 26 Oct 2012 09:14
Last Modified: 20 Jan 2013 14:55

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