Design of adaptive modulation and coding scheme for truncated hybrid ARQ

Chung Gu Kang, Si H. Park, Jin W. Kim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

It has been known that adaptive modulation and coding (AMC) at the physical layer can be combined with a truncated automatic repeat request (ARQ) at the data link layer so as to maximize the spectral efficiency under prescribed delay and error performance constraint. In this paper, we consider the same joint design approach when incremental redundancy-based hybrid ARQ (IR-HARQ) is associated with an AMC design at the physical layer. The extensive simulation studies for predicting the progressive combining gain with each retransmission enables to evaluate the bandwidth efficiency that can be achieved by selecting a more aggressive modulation and coding rate set (MCS) at the expense of packet error rate in earlier transmissions. It has been demonstrated that the aggressive AMC design approach in association with IR-based truncated HARQ can improve bandwidth efficiency by 5.8 and 3.3 dB, as compared to the conservative AMC design approach with truncated HARQ and aggressive AMC design approach with truncated ARQ (i.e., without taking the progressive combining gain in HARQ into account), respectively.

Original languageEnglish
Pages (from-to)269-280
Number of pages12
JournalWireless Personal Communications
Volume53
Issue number2
DOIs
Publication statusPublished - 2010 Apr 1

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Adaptive modulation
Bandwidth
Redundancy
Modulation

Keywords

  • Adaptive modulation and coding
  • Bandwidth efficiency
  • Link adaptation
  • Truncated hybrid ARQ

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications

Cite this

Design of adaptive modulation and coding scheme for truncated hybrid ARQ. / Kang, Chung Gu; Park, Si H.; Kim, Jin W.

In: Wireless Personal Communications, Vol. 53, No. 2, 01.04.2010, p. 269-280.

Research output: Contribution to journalArticle

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