Change search
ReferencesLink to record
Permanent link

Direct link
A Distributed Power Allocation Scheme for Sum-Rate Maximization on Cognitive GMACs
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. (RST)
(Incheon Univ.)
(Stanford Univ.)
Show others and affiliations
2013 (English)In: IEEE Transactions on Communications, ISSN 0090-6778, E-ISSN 1558-0857, Vol. 61, no 1, 248-256 p.Article in journal (Refereed) Published
Abstract [en]

This paper considers a distributed power allocation scheme for sum-rate-maximization under cognitive Gaussian multiple access channels (GMACs), where primary users and secondary users may communicate under mutual interference with the Gaussian noise. Formulating the problem as a standard nonconvex quadratically constrained quadratic problem (QCQP) provides a simple distributed method to find a solution using iterative Jacobian method instead of using centralized schemes. A totally asynchronous distributed power allocation for sum-rate maximization on cognitive GMACs is suggested. Simulation results show that this distributed algorithm for power allocation converges to a fixed point and the solution achieves almost the same performance as the exhaustive search.

Place, publisher, year, edition, pages
2013. Vol. 61, no 1, 248-256 p.
Keyword [en]
Distributed power allocation, Gaussian multiple access channels, cognitive radio, non-convex QCQP, sum-rate maximization
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-118233DOI: 10.1109/TCOMM.2013.010913.110090ISI: 000314974000025ScopusID: 2-s2.0-84873652160OAI: diva2:605243

QC 20130315

Available from: 2013-02-13 Created: 2013-02-13 Last updated: 2013-03-15Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Han, Sang-wook
By organisation
Communication Systems, CoS
In the same journal
IEEE Transactions on Communications
Communication Systems

Search outside of DiVA

GoogleGoogle Scholar
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: 65 hits
ReferencesLink to record
Permanent link

Direct link