Change search
ReferencesLink to record
Permanent link

Direct link
Distributed Resource Optimization in Multicell OFDMA Networks
University of Kurdistan.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, The Institute of Technology.
2012 (English)In: Proceedings of the IEEE Wireless Communications and Networking Conference (WCNC), IEEE , 2012, 1316-1320 p.Conference paper (Refereed)
Abstract [en]

We consider the joint allocation of receiver, bit, and power to subcarriers in the downlink of multicell orthogonal frequency-division multiple-access (OFDMA) networks. Assuming that the cells share the entire bandwidth and that the rates are discrete, we formulate the joint allocation problem as a nonlinear mixed integer program (MIP), which however has exponential worst-case complexity. We capitalize on the capability of the receivers to measure the interference-plus-noise on every subcarrier and decompose the joint problem into a set of smaller-scale linear MIPs solved by individual base stations. Accordingly, we propose a distributed algorithm with linear complexity, in which the base stations participate in the problem solution in a round-robin manner. Simulation results demonstrate the effectiveness of the proposed algorithm in comparison with the iterative waterfilling algorithm and the successive optimal solution, by means of standard branch-and-cut solvers, of the individual MIPs.

Place, publisher, year, edition, pages
IEEE , 2012. 1316-1320 p.
, Wireless Communications and Networking Conference (WCNC), ISSN 1525-3511
National Category
Communication Systems
URN: urn:nbn:se:liu:diva-72918DOI: 10.1109/WCNC.2012.6213982ISBN: 978-1-4673-0436-8OAI: diva2:463650
IEEE Wireless Communications and Networking Conference (WCNC)
EU, FP7, Seventh Framework Programme, 248001
Available from: 2011-12-10 Created: 2011-12-10 Last updated: 2014-11-13

Open Access in DiVA

fulltext(205 kB)514 downloads
File information
File name FULLTEXT01.pdfFile size 205 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Karipidis, Eleftherios
By organisation
Communication SystemsThe Institute of Technology
Communication Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 514 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 365 hits
ReferencesLink to record
Permanent link

Direct link