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Effect of Transmit Antenna Configuration on Rank-Determinant Criteria of Space-time Trellis
 

Summary: Effect of Transmit Antenna Configuration on
Rank-Determinant Criteria of Space-time Trellis
Codes
Tharaka A. Lamahewa, Thushara D. Abhayapala and Rodney A. Kennedy
Abstract-- In this paper we derive a new upper bound for the
pairwise error probability of space-time codes in a quasi-static
Rayleigh fading channel, considering antenna configuration at
the transmitter side. The design criterion for existing space-
time trellis codes is based on the rank and the determinant
of the distance matrix between two code words. In particular,
the diversity advantage of the space-time code is associated
to the rank of the distance matrix. We show that when the
transmit antenna region is small, the diversity advantage given
by the space-time code is reduced by the transmit antenna
configuration and the diversity advantage of the code depends
on the rank of the antenna configuration matrix. We also show
that the uniform linear array antenna configuration diminishes
the diversity advantage provide by the space-time code while the
uniform circular array antenna configuration does not effect to
the diversity advantage of the space-time code.

  

Source: Abhayapala, Thushara D. - Department of Information Engineering, Australian National University

 

Collections: Computer Technologies and Information Sciences