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IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 17, NO. 3, MARCH 1999 451 SpaceTime Block Coding for Wireless
 

Summary: IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 17, NO. 3, MARCH 1999 451
Space­Time Block Coding for Wireless
Communications: Performance Results
Vahid Tarokh, Member, IEEE, Hamid Jafarkhani, Member, IEEE, and A. Robert Calderbank, Fellow, IEEE
Abstract--We document the performance of space­time block
codes [13], [14], which provide a new paradigm for transmission
over Rayleigh fading channels using multiple transmit antennas.
Data is encoded using a space­time block code, and the encoded
data is split into nnn streams which are simultaneously transmitted
using nnn transmit antennas. The received signal at each receive
antenna is a linear superposition of the nnn transmitted signals
perturbed by noise. Maximum likelihood decoding is achieved
in a simple way through decoupling 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. We review the encoding and
decoding algorithms for various codes and provide simulation
results demonstrating their performance. It is shown that using
multiple transmit antennas and space­time block coding provides

  

Source: Alajaji, Fady - Department of Mathematics and Statistics, Queen's University (Kingston)

 

Collections: Engineering