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%ما هو (من)٪ 1 - تعريف
9 Tales of Space and Time
BOOK BY RAYMOND J. HEALY
9 Tales of Space & Time; Nine Tales of Space and Time
9 Tales of Space and Time is an anthology of original science fiction stories edited by Raymond J. Healy, published in hardcover by Henry Holt in 1954.
Space–time block code
![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://www.mathworks.com/help/comm/examples/introduction-to-mimo-systems.html Introduction to MIMO Systems (MathWorks)]</ref>](https://commons.wikimedia.org/wiki/Special:FilePath/Alamouti 06.png?width=200 "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://www.mathworks.com/help/comm/examples/introduction-to-mimo-systems.html Introduction to MIMO Systems (MathWorks)]</ref>")
FORM OF SPACE–TIME CODE USED IN WIRELESS TELECOMMUNICATIONS
Alamouti coding; Space time block code; Space-time block code
Space–time block coding is a technique used in wireless communications to transmit multiple copies of a data stream across a number of antennas and to exploit the various received versions of the data to improve the reliability of data transfer. The fact that the transmitted signal must traverse a potentially difficult environment with scattering, reflection, refraction and so on and may then be further corrupted by thermal noise in the receiver means that some of the received copies of the data may be closer to the original signal than others.
Space/Time – Redemption
2014 STUDIO ALBUM BY MILFORD GRAVES AND BILL LASWELL
Space/Time - Redemption
Space/Time – Redemption is an album by drummer Milford Graves and bassist Bill Laswell. It was recorded in September and October 2013, and was released by TUM Records in 2014.
