Differential space-time block codes with iterative detection

Jinhong Yuan, Xun Shao, Yi Hong

Research output: Contribution to conferenceAbstract

Abstract

Various differential space-time coding schemes were proposed, where neither the transmitter nor the receiver has the channel state information (CSI). In [1], a differential space-time block code (DSTBC) based on orthogonal designs was constructed by Tarokh and Jafarkhani (TJ). The performance of TJ'DSTBC is 3 dB worse than the corresponding coherent space-time block code (STBC). In this paper, we propose a new DSTBC scheme, which provides a coding gain due to the redundancy introduced by the differential encoder. The new code can be represented by a trellis. If the Viterbi algorithm is used in decoding, the code performs 1 dB better than TJ's scheme and is only 2 dB away from the coherent STBC [2]. Furthermore, the new scheme has a recursive structure. If concatenated with an outer code, the new scheme with iterative decoding and no CSI can outperform the corresponding concatenated STBC with ideal CSI.

Original languageEnglish
Number of pages1
Publication statusPublished - 20 Oct 2003
Externally publishedYes
EventProceedings 2003 IEEE International Symposium on Information Theory (ISIT) - Yokohama, Japan
Duration: 29 Jun 20034 Jul 2003

Conference

ConferenceProceedings 2003 IEEE International Symposium on Information Theory (ISIT)
CountryJapan
CityYokohama
Period29/06/034/07/03

Cite this

Yuan, J., Shao, X., & Hong, Y. (2003). Differential space-time block codes with iterative detection. Abstract from Proceedings 2003 IEEE International Symposium on Information Theory (ISIT), Yokohama, Japan.