Space–time trellis code: Difference between revisions

Revision as of 15:11, 27 May 2008

Revision as of 11:44, 20 May 2009

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In contrast to [[space–time block code]]s (STBCs), they are able to provide both coding gain and diversity gain and have a better [[bit error rate|bit-error rate]] performance. However, being based on [[convolutional code|trellis codes]], they are more complex than STBCs to encode and decode; they rely on a [[Viterbi algorithm|Viterbi decoder]] at the receiver where STBCs need only [[linear]] processing.

STTCs were discovered by [[Vahid Tarokh]] et. al. in [[1998]].<ref name="construction">{{cite journal|author=Vahid Tarokh, Nambi Seshadri, and A. R. Calderbank|title=Space–time codes for high data rate wireless communication: Performance analysis and code construction|journal=IEEE Transactions on Information Theory|pages=744–765|volume=44|issue=2|date=March 1998|doi=10.1109/18.661517}}</ref><ref name="performance">{{cite journal|author=Vahid Tarokh, Ayman Naguib, Nambi Seshadri and A. Robert Calderbank|title=Space&ndash;time codes for high data rate wireless communication: performance criteria in the presence of channel estimation errors, mobility, and multiple paths|journal=IEEE Transactions on Communications|pages=199–207|volume=47|issue=2|date=February 1999|doi=10.1109/26.752125}}</ref>

==References==

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[[Category:Wireless]]

{{wireless-stub}}