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744 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 44, NO. 2, MARCH 1998 SpaceTime Codes for High Data
 

Summary: 744 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 44, NO. 2, MARCH 1998
Space­Time Codes for High Data
Rate Wireless Communication:
Performance Criterion and Code Construction
Vahid Tarokh, Member, IEEE, Nambi Seshadri, Senior Member, IEEE, and A. R. Calderbank, Fellow, IEEE
Abstract-- We consider the design of channel codes for im-
proving the data rate and/or the reliability of communications
over fading channels using multiple transmit antennas. Data is
encoded by a channel code and the encoded data is split into
n streams that 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. We
derive performance criteria for designing such codes under the
assumption that the fading is slow and frequency nonselective.
Performance is shown to be determined by matrices constructed
from pairs of distinct code sequences. The minimum rank among
these matrices quantifies the diversity gain, while the minimum
determinant of these matrices quantifies the coding gain. The
results are then extended to fast fading channels. The design
criteria are used to design trellis codes for high data rate wireless

  

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

 

Collections: Engineering