2 Citations (Scopus)

Abstract

As a practical technique for enhancing relay and HARQ transmissions, modulation diversity (MoDiv) uses distinct constellation mappings for data retransmissions. In this work, we study the MoDiv optimization in a amplify-and-forward (AF) two-way relay channel (TWRC). The design of MoDiv to minimize the bit-error rate (BER) is formulated into a successive Koopmans-Beckmann quadratic assignment problem (QAP), which is solved sequentially with a robust tabu search method. The performance gain of our MoDiv scheme over retransmission without remapping and a heuristic MoDiv scheme is demonstrated with numerical results.

Original languageEnglish (US)
Article number7407322
Pages (from-to)244-247
Number of pages4
JournalIEEE Wireless Communications Letters
Volume5
Issue number3
DOIs
StatePublished - Jun 1 2016

Fingerprint

relay
Modulation
modulation
Tabu search
constellations
bit error rate
Bit error rate
optimization

Keywords

  • 2-way relay
  • HARQ
  • Modulation diversity
  • QAP

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Modulation Design for Two-Way Amplify-and-Forward Relay HARQ. / Wu, Wenhao; Mittelmann, Hans; Ding, Zhi.

In: IEEE Wireless Communications Letters, Vol. 5, No. 3, 7407322, 01.06.2016, p. 244-247.

Research output: Contribution to journalArticle

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