TCM without constellation expansion penalty

  title={TCM without constellation expansion penalty},
  author={Edit J. Kaminsky and James Ayo and Kenneth V. Cartwright},
  journal={Journal of Communications and Networks},
We present a family of constant-amplitude constellations of even dimensions 8 and above. These constellations allow trellis coded modulation to be implemented without the usual penalty paid for constellation expansion. The new constellations are generated by concatenating either n QPSK points or n QPSK points rotated by 45 degrees, for any n > 4. Our constellations double the number of points available for transmission without decreasing the distance between points and without increasing the… CONTINUE READING
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