ELECTRICA

Turbo Trellis Coded Modulation (TTCM) with Imperfect Phase Reference

1.

Istanbul University Engineering Faculty, Electronics Dept. 34850, Avcilar, Istanbul-Turkey

2.

Yeditepe University Vocational School for Higher Education, Computer Technologies &Programming Dept. Bagdat Cad. Rahmanlar Istanbul-Turkey

ELECTRICA 2001; 1: 1-5
Read: 1047 Downloads: 556 Published: 29 December 2019

In this paper, we investigate the performance of Turbo Trellis Coded Modulation (TTCM) over AWGN, and Rician channels and assume that phase disturbance is available. As we know Turbo Trellis Coded Modulation (TTCM) is similer to binary turbo codes, but employs Trellis Coded Modulation (TCM) codes which include multi-dimensional codes. The combination of turbo codes with trellis codes leads to a strigthforward encoder structure, and allows iterative decoding as binary turbo decoder. However, iterative Turbo Decoder needs to be adapted to the decoding of TCM codes. Here, we investigate TTCM for 8PSK for several Rician parameter K and effective signal-to-noise ratio in the carrier tracking loop α. Thus, our results will reflect the degredations both due to the effects of the fading on the amplitude of the received signal and of a noisy carrier reference.

 

Files
EISSN 2619-9831