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Exact Pairwise Error Probability of Differential Space-Time Codes in Spatially Correlated Channels
 

Summary: Exact Pairwise Error Probability of Differential
Space-Time Codes in Spatially Correlated Channels
Tharaka A. Lamahewa, Van K. Nguyen§, Thushara D. Abhayapala
Department of Information Engineering, The Australian National University, Canberra ACT 0200, Australia.
and §School of Engineering and Technology, Deakin University, Geelong, VIC 3217, Australia.
{tharaka.lamahewa, thushara.abhayapala}@anu.edu.au, vknguyen@deakin.edu.au.
Abstract-- In this paper, we derive an analytical expression
for the exact pairwise error probability (PEP) of a differential
space-time coded system operating over a spatially correlated
slow fading channel. An analytic model for spatial correlation is
used which fully accounts for antenna spacing, antenna geometry
and non-isotropic scattering distributions. Inclusion of spatial
information in error performance analysis provides valuable
insights into the physical factors determining the performance
of a differential space-time code (DSTC). Using this new PEP
expression, we investigate the effects of antenna spacing, antenna
geometries and azimuth power distribution parameters (angle of
arrival/departure and angular spread) on the performance of
a differential space-time block code (DSTBC) proposed in the
literature for two transmit antennas.

  

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

 

Collections: Computer Technologies and Information Sciences