Alamouti algorithm (Oct 1998) needs channel estimation.
If any one knows what algorithms can be used for channel estimation please tell me, at least the names of the algorithms.
There are plenty of algorithms to do channel estimation. The basic idea is that you must send either training sequence or pilot signal to let receiver estimate the channel. To get the channel estimate you can use least square (LS) algorithm.
Dear vkekk
My answer to the first question:
BLAST code is used in channels with no fading or not very bad fading. Then it can be used for increasing data rate and spatial multiplexing in contrast of another space-time codes like space-time block and trellis codes.
Dear vkekk
BLAST codes have some types. Very famous type is V-BLAST, but another types like H-BLAST and D-BLAST are available.
I think your first question about BLAST system is the system that uses BLAST code.