Performance analysis of modified/quadrature partial response-trellis coded modulation (M/QPR-TCM) systems

Ucan O.

IEICE TRANSACTIONS ON COMMUNICATIONS, ss.1570-1576, 1996 (SCI İndekslerine Giren Dergi) identifier

  • Basım Tarihi: 1996
  • Sayfa Sayıları: ss.1570-1576


In this paper, partial response signalling and trellis coded modulation are considered together to improve bandwidth efficiency and error performance for M-QAM and denoted as Modified/Quadrature Partial Response-Trellis Coded Modulation (M/QPR-TCM) and two new non-catastrophic schemes M/6QPR-TCM and M/9QPR-TCM are introduced for 4QAM, In colored noise with correlation coefficient less than zero, the proposed schemes perform better than in AWGN case. Another interesting result is that when the combined system is used on a Rician fading channel, the bit error probability upper bounds of the proposed systems are better than their counterparts the 4QAM-TCM systems with 2 and 4 states, respectively for SNR values greater than a threshold, which have the best error performance in the literature.