Title :
Balanced QPSK space-time trellis codes
Author :
Ngo, T.M.H. ; Viland, P. ; Zaharia, G. ; Hélard, J-F
Author_Institution :
INSA, Inst. of Electron. & Telecommun. of Rennes, Rennes
Abstract :
All the best known space-time trellis codes (STTCs) belong to the balanced STTC class. The first method to design balanced STTCs is proposed. The exhaustive code search of optimal codes can then be reduced to this class. Finally, the proposed method is used to construct new QPSK codes for three and four transmit antennas, which outperform the best previously published codes of the same complexity.
Keywords :
antenna arrays; modulation coding; quadrature phase shift keying; transmitting antennas; trellis codes; balanced QPSK space-time trellis codes design method; exhaustive code search; transmit antennas;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20081016
