A systematic space-time code design and its maximum-likelihood decoding for combined channel estimation and error correction

Chia Lung Wu*, Mikael Skoglund, Po-Ning Chen, Yunghsiang S. Han

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Several previous works have confirmed that a joint design that combines channel estimation, channel coding and space-time transmission can improve the system performanceover that of a separate design. These conclusions are however in general based on unstructured solutions obtained using computer search. The coding gain of these joint designs is thereforelimited by both the computer-searchable "short" code length and the compromise between "suboptimal" performance and "high" complexity of their optimal decoding.At this background, we propose a systematic space-time code construction for joint channel estimation and error correction for a two-transmit-antenna and half-rate system. Also proposed is itsmaximum- likelihood decoder that follows a priority-first search principle. Our systematic code construction, together with a fairly low-complexity optimal decoder, then allows one to work withlonger codes with no sacrifice in performance. For codes of short block length, our simulations illustrate that the codes we propose have comparable performance to the best computer-searchedcodes. For codes of long block lengths that are almost beyond the searchable range of existing computer systems, our codes are still better than some reference designs based on separatechannel estimation and error correction components.

Original languageEnglish
Title of host publication2009 IEEE International Symposium on Information Theory, ISIT 2009
Pages764-768
Number of pages5
DOIs
StatePublished - 19 Nov 2009
Event2009 IEEE International Symposium on Information Theory, ISIT 2009 - Seoul, Korea, Republic of
Duration: 28 Jun 20093 Jul 2009

Publication series

NameIEEE International Symposium on Information Theory - Proceedings
ISSN (Print)2157-8102

Conference

Conference2009 IEEE International Symposium on Information Theory, ISIT 2009
CountryKorea, Republic of
CitySeoul
Period28/06/093/07/09

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  • Cite this

    Wu, C. L., Skoglund, M., Chen, P-N., & Han, Y. S. (2009). A systematic space-time code design and its maximum-likelihood decoding for combined channel estimation and error correction. In 2009 IEEE International Symposium on Information Theory, ISIT 2009 (pp. 764-768). [5205641] (IEEE International Symposium on Information Theory - Proceedings). https://doi.org/10.1109/ISIT.2009.5205641