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Line 3: 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~~744–765\|volume=44\|issue=2\|date=March 1998\|id={{doi\|10.1109/18.661517}}}}</ref><ref name="performance">{{cite journal\|author=Vahid Tarokh, Ayman Naguib, Nambi Seshadri and A. Robert Calderbank\|title=Space–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~~199–207\|volume=47\|issue=2\|date=February 1999\|id={{doi\|10.1109/26.752125}}}}</ref> ==References==

Space–time trellis code: Difference between revisions