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Line 70: ===Alamouti's code=== [[File:Alamouti 06.png\|thumb\|400px\|Bit-error ratio performance of the simulated Alamouti transmission over the partially time-invariant MISO and MIMO channels (K = 0.6). Note that the case of Alamouti 2x1 completely matched with the theoretical 2nd order diversity, however, Alamouti 2x2 has the better BER performance due to additional array gain<ref>[https://nbviewer.jupyter.org/gist/kirlf/9587c6859db08e5e813b0650f97c7344 Space-Time codes: (Alamouti]</ref><ref>[https://www.mathworks.com/help/comm/examples/introduction-to-mimo-systems.html Introduction to MIMO Systems (MathWorks)]</ref>.]] [[Siavash Alamouti]] invented the simplest of all the STBCs in 1998,<ref name="alamouti" /> although he did not coin the term "space–time block code" himself. It was designed for a two-transmit antenna system and has the coding matrix:

Space–time block code: Difference between revisions