Space Time Block Codes
Space Time Block Codes (STBC)
proposed in [1] and generalized in [2] is another example of
space-time coding. These codes are defined by a mapping operation of a
block of input symbols into space and time creating orthogonal
sequences that are transmitted from different transmit antennas. The
receiver uses a ML detection rule to decode the transmitted
information. A diversity advantage of order Nt×Nr,
where Nt and Nr
are the number of transmit and receive antennas respectively, is
provided at the receiver.
References
[1] Alamouti, S.M,
“A simple transmit diversity technique for wireless
communications”, IEEE Journal on Selected Areas in Communications,
Volume: 16 Issue: 8, Oct. 1998 Page(s): 1451 -1458.
[2] Tarokh, V.; Jafarkhani, H.; Calderbank, A.R.,
“Space-time block codes from orthogonal designs”, IEEE
Transactions on Information Theory, Volume: 45 Issue: 5, July 1999
Page(s): 1456 -1467.
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