Differential transmit diversity based on quasi-orthogonal space-time block code

Chau Yuen*, Yong Liang Guan, Tjeng Thiang Tjhung

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

17 Citations (Scopus)

Abstract

By using joint modulation and customized constellation set, we show that Quasi-Orthogonal Space-Time Block Code (QO-STBC) can be used to form a new differential space-time modulation (DSTM) scheme to provide full transmit diversity with non-coherent detection. Our new scheme can provide higher code rate than existing DSTM schemes based on Orthogonal STBC. It also has a lower decoding complexity than the other DSTM schemes, such as those based on Group Codes, because it only requires a joint detection of two complex symbols. We derive the design criteria for the customized constellation set and use them to construct a constellation set that provides a wide range of spectral efficiency with full diversity and maximum coding gain.

Original languageEnglish
Pages545-549
Number of pages5
Publication statusPublished - 2004
Externally publishedYes
EventGLOBECOM'04 - IEEE Global Telecommunications Conference - Dallas, TX, United States
Duration: Nov 29 2004Dec 3 2004

Conference

ConferenceGLOBECOM'04 - IEEE Global Telecommunications Conference
Country/TerritoryUnited States
CityDallas, TX
Period11/29/0412/3/04

ASJC Scopus Subject Areas

  • General Engineering

Keywords

  • Differential space-time modulation
  • Low decoding complexity
  • Non coherent detection
  • Quasi-orthogonal space-time black code

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