Design of Amplitude and Phase Modulated Signals for Differential Space-Time Block Codes

  • Authors:

  • Alexandre Vanaev;Hermann Rohling

  • Affiliations:

  • Department of Telecommunications, Technical University Hamburg-Harburg, Hamburg, Germany;Department of Telecommunications, Technical University Hamburg-Harburg, Hamburg, Germany

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 2006

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Abstract

A differential space-time block code (DSTBC) provides full diversity advantage and does not require any radio channel estimation in the receiver, which makes it an attractive alternative to the well-known coherent space-time block code (STBC). However the original design of DSTBC allows only pure phase shift keying (M-PSK) modulation scheme, which are not optimal for M 4. In this paper a simultaneous amplitude and phase modulation scheme for DSTBC with 2 transmit and several receive antennas is introduced. The performance of the proposed scheme is investigated and compared with DSTBC techniques using pure M-PSK modulation.