Joint selection combining and power loading transmission with adaptive M-QAM in multichannel system

Sang Do Lee, Young Chai Ko

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this paper, we propose an adaptive M-ary quadrature amplitude modulation (M-QAM) transmission scheme that jointly uses selection combining and power loading over multiple independent identically distributed (i.i.d.) Rayleigh-fading channels in multichannel systems. We derive exact closed-form expressions of the performance of the proposed scheme in terms of the spectral efficiency, the average bit error rate (BER), and the outage probability. Numerical results show that our proposed hybrid scheme offers higher spectral efficiency and lower outage probability than the conventional schemes presented in the literature and is more reliable in the low-signal-to-noise-ratio (SNR) region as well.

Original languageEnglish
Pages (from-to)3819-3825
Number of pages7
JournalIEEE Transactions on Vehicular Technology
Volume58
Issue number7
DOIs
Publication statusPublished - 2009

Keywords

  • Adaptive modulation
  • Power loading
  • Selection combining (SC)
  • Variable rate variable power

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics

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