Joint subcarrier and power allocation in uplink OFDMA systems

Keunyoung Kim, Youngnam Han, Seong Lyun Kim

Research output: Contribution to journalArticle

280 Citations (Scopus)

Abstract

In this letter, we focus on joint subcarrier and power allocation in the uplink of an OFDMA system. Our goal is to maximize the rate-sum capacity in the uplink. For the purpose, we formulate an optimization problem subject to subcarrier- and power constraints and draw necessary conditions for optimality, from which we derive joint subcarrier and power allocation algorithms. Simulation results show that our proposed scheme enhances the system capacity, providing almost near optimal solutions with low computational burden.

Original languageEnglish
Pages (from-to)526-528
Number of pages3
JournalIEEE Communications Letters
Volume9
Issue number6
DOIs
Publication statusPublished - 2005 Jun 1

Fingerprint

Subcarrier Allocation
Orthogonal Frequency Division multiple Access (OFDMA)
Power Allocation
Uplink
Optimality
Optimal Solution
Maximise
Optimization Problem
Necessary Conditions
Simulation

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

Kim, Keunyoung ; Han, Youngnam ; Kim, Seong Lyun. / Joint subcarrier and power allocation in uplink OFDMA systems. In: IEEE Communications Letters. 2005 ; Vol. 9, No. 6. pp. 526-528.
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Joint subcarrier and power allocation in uplink OFDMA systems. / Kim, Keunyoung; Han, Youngnam; Kim, Seong Lyun.

In: IEEE Communications Letters, Vol. 9, No. 6, 01.06.2005, p. 526-528.

Research output: Contribution to journalArticle

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