Jointly optimal chunk and power allocation in uplink SC-FDMA

Teoman Mert, Onur Kaya, Hakan A. Cirpan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

12 Citations (Scopus)

Abstract

For a single carrier frequency division multiple access (SC-FDMA) system, we obtain the jointly optimal power and chunk allocation policies which maximize the sum rate. Our solution is applicable to both localized and interleaved subcarrier mapping schemes. We solve the joint optimization problem by sequentially solving two sub-problems: power allocation and chunk allocation. Primarily, we use an optimal power allocation algorithm, which we derive from Karush-Kuhn-Tucker (KKT) conditions; and then we convert the optimum chunk assignment problem into a maximum weighted matching problem on a bipartite graph, and hence solve it in polynomial time. We also propose two greedy chunk allocation algorithms with lower complexity, and demonstrate that these algorithms produce near optimal results, especially for interleaved subcarrier mapping, when used in conjunction with optimal power control.

Original languageEnglish
Title of host publication2013 IEEE International Conference on Communications, ICC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3393-3397
Number of pages5
ISBN (Print)9781467331227
DOIs
Publication statusPublished - 2013
Event2013 IEEE International Conference on Communications, ICC 2013 - Budapest, Hungary
Duration: 9 Jun 201313 Jun 2013

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607

Conference

Conference2013 IEEE International Conference on Communications, ICC 2013
Country/TerritoryHungary
CityBudapest
Period9/06/1313/06/13

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