Equivalence of optimum and joint processing receivers for space-time block coded systems

  • Authors:
  • Parul Garg;Ranjan K. Mallik

  • Affiliations:
  • Division of Electronics and Communication Engineering, Netaji Subhas Institute of Technology, Dwarka, New Delhi;Department of Electrical Engineering, Indian Institute of Technology-Delhi, Hauz Khas, New Delhi

  • Venue:
  • IEEE Transactions on Wireless Communications
  • Year:
  • 2009

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Abstract

A space-time block coded system in a correlated Rayleigh flat fading environment with transmit and receive correlation is considered. The channel state information (CSI) is estimated from a sequence of pilot code vectors which are known to the receiver and transmitted prior to data code transmission. Two receiver structures, namely the optimum receiver in which the estimated CSI is used in the maximum likelihood sense and the joint processing receiver that jointly processes the received data code and the received pilot code vectors, are presented and their equivalence is shown.