Efficient Pricing Technique for Resource Allocation Problem in Downlink OFDM Cognitive Radio Networks

O. B. Abdulghafoor, M. M.R. Shaat, Mahamod Ismail, Rosdiadee Nordin, T. Yuwono, O. N.A. Alwahedy

Research output: Contribution to journalArticle

Abstract

In this paper, the problem of resource allocation in OFDM-based downlink cognitive radio (CR) networks has been proposed. The purpose of this research is to decrease the computational complexity of the resource allocation algorithm for downlink CR network while concerning the interference constraint of primary network. The objective has been secured by adopting pricing scheme to develop power allocation algorithm with the following concerns: (i) reducing the complexity of the proposed algorithm and (ii) providing firm power control to the interference introduced to primary users (PUs). The performance of the proposed algorithm is tested for OFDM- CRNs. The simulation results show that the performance of the proposed algorithm approached the performance of the optimal algorithm at a lower computational complexity, i.e., O(NlogN), which makes the proposed algorithm suitable for more practical applications.

Original languageEnglish
Article number012038
JournalJournal of Physics: Conference Series
Volume852
Issue number1
DOIs
Publication statusPublished - 6 Jun 2017

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resource allocation
interference

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Efficient Pricing Technique for Resource Allocation Problem in Downlink OFDM Cognitive Radio Networks. / Abdulghafoor, O. B.; Shaat, M. M.R.; Ismail, Mahamod; Nordin, Rosdiadee; Yuwono, T.; Alwahedy, O. N.A.

In: Journal of Physics: Conference Series, Vol. 852, No. 1, 012038, 06.06.2017.

Research output: Contribution to journalArticle

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