Complexity-reduced adaptive subchannel, bit, and power allocation algorithm and its throughput analysis for cellular OFDM system

Kwang Man Ok, Chung Gu Kang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We introduce an adaptive subchannel, bit, and power allocation (ASBPA) algorithm to maximize the bandwidth efficiency of the mobile communication system that use orthogonal frequency division multiplexing (OFDM). We propose a suboptimal rate adaptive ASBPA algorithm that guarantees fairness in resource allocation and overcomes inherent co-channel interference (CCI) in the cellular system. Furthermore, we evaluate the maximum possible bandwidth efficiency of the cellular OFDM system achieved by the ASBPA algorithm which is practical to implement. Our simulation results show that the proposed algorithm outperforms the existing ones and achieves the cellular bandwidth efficiency of up to 5 b/s/Hz/cell. We also investigate some of the conditions that govern the bandwidth efficiency of the cellular OFDM system using the proposed ASBPA algorithm.

Original languageEnglish
Pages (from-to)269-276
Number of pages8
JournalIEICE Transactions on Communications
VolumeE90-B
Issue number2
DOIs
Publication statusPublished - 2007 Feb 1

Fingerprint

Orthogonal frequency division multiplexing
Throughput
Bandwidth
Mobile telecommunication systems
Resource allocation

Keywords

  • Adaptive modulation
  • Land mobile radio cellular systems
  • Orthogonal frequency division multiplexing
  • Radio resource management

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

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