Proportional resource allocation for OFDMA system

Ka Kien Lo, Su Fong Chien, David Chieng, Heng Siong Lim, Kwong Kae Hsiang

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

2 Citations (Scopus)


In this paper, resource allocation for OFDMA system with proportional rate constraints is studied. The objective is to optimize subcarriers and power allocation in order to maximize sum capacity subject to the constraints of total power and proportionality among users' capacity. Optimal solution to the constrained fairness maximization problem is extremely computationally expensive. Previous works have proposed suboptimal solution by separating the subcarrier and channel allocation. Although previous work offered a suboptimal solution which is 95% close to the optimal but the resource allocation algorithm is found biased to the users which suffer deep fading and can only work in high channel-to-noise ratio condition. We propose a resource allocation algorithm to overcome these issues. The numerical results show that the proposed algorithm consistently yields higher sum capacity and better fairness in resource allocation among users.

Original languageEnglish
Title of host publicationIEEE TENSYMP 2014 - 2014 IEEE Region 10 Symposium
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)9781479920280
Publication statusPublished - 23 Jul 2014
Externally publishedYes
Event2014 IEEE Region 10 Symposium, IEEE TENSYMP 2014 - Kuala Lumpur, Malaysia
Duration: 14 Apr 201416 Apr 2014

Publication series

NameIEEE TENSYMP 2014 - 2014 IEEE Region 10 Symposium


Conference2014 IEEE Region 10 Symposium, IEEE TENSYMP 2014
CityKuala Lumpur


  • Component
  • Proportional fairness
  • Resource allocation

ASJC Scopus subject areas

  • General Computer Science
  • General Engineering


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