Joint Allocation of Subcarriers and Transmit Powers in a Multiuser OFDM Cellular Network

Thaya Thanabalasingham*, Stephen Hanly, Lachlan L. H. Andrew, John Papandriopoulos

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

34 Citations (Scopus)


In the present paper, we consider the problem of joint bandwidth (subcarriers) and power allocation for the downlink of a multi-user multi-cell OFDM cellular network. This resource allocation problem is formulated as a power minimization problem, subject to meeting the target rates of all users in the network. We develop a distributed solution to find the globally optimal allocation which determines the subcarrier and power allocation dynamically. In addition, we investigate the impact of reducing the complexity by reducing the number of degrees of freedom available in the optimization. In particular, we consider a static bandwidth allocation scheme, and a static power allocation scheme. The numerical results show that the penalty on network performance due to the reduction in the available degrees of freedom is not significant.

Original languageEnglish
Title of host publication2006 IEEE International Conference on Communications, Vols 1-12
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)1424403553
ISBN (Print)1424403545
Publication statusPublished - 2006
Externally publishedYes
Event2006 IEEE International Conference on Communications, ICC - 2006 - Istanbul, Turkey
Duration: 11 Jul 200615 Jul 2006

Publication series

NameIEEE International Conference on Communications
ISSN (Print)81-649547


Other2006 IEEE International Conference on Communications, ICC - 2006

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