The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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On the Relationship Between the Performance Criteria of Unitary Space-Time Codes with Noncoherent and Coherent Decoding

  • Cheun, Kyung-Whoon (Department of Electronic and Electronical Engineering, Pohang University of Science and Technology (POSTECH)) ;
  • Kim, Jeong-Chang (Department of Electronics and Communications Engineering, Korea Maritime University) ;
  • Choi, Soong-Yoon (Samsung Electronics Co., Ltd.)
  • Received : 2010.08.06
  • Accepted : 2010.11.26
  • Published : 2010.12.31
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Abstract

Hochwald et al. introduced unitary space-time codes for quasi-static Rayleigh fading channels which allows for noncoherent decoding when the channel response is not known at the receiver. However, when reliable information on the channel response is available, coherent decoding is preferable for improved performance. Here, we study the relationship between the performance criteria on the diversity and coding advantages provided by unitary space-time codes with noncoherent and coherent decoding. We show that when a unitary space-time code achieves full spatial diversity with noncoherent decoding, full spatial diversity is also guaranteed with coherent decoding.

Keywords

References

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