Adaptive subcarrier allocation in multiuser OFDM system using forced cost based decisions

Munasinghe, Gayan, Jayalath, Dhammika, & Ziri-Castro, Karla I. (2012) Adaptive subcarrier allocation in multiuser OFDM system using forced cost based decisions. In Proceedings of the IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications, IEEE Explore, Sydney, N. S.W., pp. 1336-1341.

View at publisher


Subcarrier allocation scheme for Orthogonal Frequency Division Multiplexing(OFDM) based multiuser system is proposed. Most previous algorithms use greedy approach as a subcarrier allocation scheme until a conflict occurs or as an initial first round allocation with improvement steps carried out in next rounds. Our algorithm uses information obtained by the forced costs of a system that incur by a current allocation to make assignment decisions. This algorithm does not rely on greedy approach and therefore can also be considered as a substitute for first layer Greedy algorithms. Simulation results show that for two user case this algorithm gives better or equal allocation 80-90 percent of the time when compared with the greedy allocation.

Impact and interest:

1 citations in Scopus
Search Google Scholar™

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

97 since deposited on 23 Sep 2012
8 in the past twelve months

Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 53783
Item Type: Conference Paper
Refereed: Yes
Keywords: Orthogonal Frequency Division Multiplexing, Subcarrier Allocation, Forced Cost
DOI: 10.1109/PIMRC.2012.6362554
ISBN: 978-1-4673-2566-0
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 IEEE
Deposited On: 23 Sep 2012 23:05
Last Modified: 21 Jul 2017 04:01

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page