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1456 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 45, NO. 5, JULY 1999 SpaceTime Block Codes from Orthogonal Designs
 

Summary: 1456 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 45, NO. 5, JULY 1999
Space­Time Block Codes from Orthogonal Designs
Vahid Tarokh, Member, IEEE, Hamid Jafarkhani, and A. R. Calderbank, Fellow, IEEE
Abstract--We introduce space­time block coding, a new par-
adigm for communication over Rayleigh fading channels using
multiple transmit antennas. Data is encoded using a space­time
block code and the encoded data is split into n streams which
are simultaneously transmitted using n transmit antennas. The
received signal at each receive antenna is a linear superposition
of the n transmitted signals perturbed by noise. Maximum-
likelihood decoding is achieved in a simple way through decou-
pling of the signals transmitted from different antennas rather
than joint detection. This uses the orthogonal structure of the
space­time block code and gives a maximum-likelihood decoding
algorithm which is based only on linear processing at the receiver.
Space­time block codes are designed to achieve the maximum
diversity order for a given number of transmit and receive
antennas subject to the constraint of having a simple decoding
algorithm.
The classical mathematical framework of orthogonal designs

  

Source: Alajaji, Fady - Department of Mathematics and Statistics, Queen's University (Kingston)
George, Steven C. - Department of Biomedical Engineering, University of California, Irvine
Howard, Sheryl - Department of Electrical Engineering and Computer Science, Northern Arizona University

 

Collections: Biology and Medicine; Computer Technologies and Information Sciences; Engineering