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.
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:
Citation counts are sourced monthly from and 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 theindexing service can be viewed at the linked Google Scholar™ search.
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.
|Item Type:||Conference Paper|
|Keywords:||Orthogonal Frequency Division Multiplexing, Subcarrier Allocation, Forced Cost|
|Divisions:||Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2012 IEEE|
|Deposited On:||23 Sep 2012 23:05|
|Last Modified:||19 Feb 2013 09:11|
Repository Staff Only: item control page