Title :
Trellis-coded CPM for wireless communications
Author :
Abrishamkar, Farrokh ; Biglieri, Ezio
Author_Institution :
Technology Group, Los Angeles, CA, USA
Abstract :
A coded modulation scheme based on trellis codes combined with continuous-phase modulated (CPM) signals is considered. Trellis-coded CPM (TCCPM) is a coded modulation technique for the transmission of digital information over bandwidth- and power-limited channels such as satellite-based terrestrial radio links (MSAT). While trellis codes provide power efficiency, the choice of CPM yields constant-envelope signals with good spectral properties. The complexity associated with optimum detection is resolved by using differential symbol-by-symbol detection. The performance of this suboptimum scheme is assessed by simulation. Comparisons with other competing signals, e.g., trellis-coded 8 DPSK, show TCCPM signals to be attractive for a wide class of wireless communications systems
Keywords :
continuous phase modulation; demodulation; satellite links; trellis coded modulation; CPM; complexity; continuous phase modulation; differential symbol-by-symbol detection; performance; power-limited channels; satellite-based terrestrial radio links; simulation; trellis codes; wireless communications; Bandwidth; Convolutional codes; Digital modulation; Frequency; Maximum likelihood detection; Modulation coding; Personal communication networks; Radio link; Telephony; Wireless communication;
Conference_Titel :
Communications, 1993. ICC '93 Geneva. Technical Program, Conference Record, IEEE International Conference on
Conference_Location :
Geneva
Print_ISBN :
0-7803-0950-2
DOI :
10.1109/ICC.1993.397525
