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Talk:Space–time block code

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This is an old revision of this page, as edited by 130.207.237.68 (talk) at 18:16, 20 November 2006 (→3 transmit antennas). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

3 transmit antennas

Why does the "Rate 1/2" code for 3 transmit antennas contain an S4? This doesn't make sense. It also appears to be a Rate 3/8 block code.

Decoding

The "Decoding" section in the "Space Time Block Code" section contains a mistake:

"One particularly attractive feature of STBCs is that maximum likelihood decoding can be achieved at the receiver with only linear processing."

The sentence is wrong because only ORTHOGONAL STBCs enjoy this feature. Quasi-orthogonal STBCs cannot use this advantage, and their loss in performance (as long as linear decoding is concerned) is also due to this. Therefore also in the Quasi-orthogonal STBCs section this point (ie: impossibility to perform ML detection with linear processing) should be pointed out.

147.162.2.222 09:58, 30 December 2005 (UTC) Francesco Rossetto (franzRoss@gmail.com) 147.162.2.222 09:58, 30 December 2005 (UTC)[reply]

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