DocumentCode
1110522
Title
New TCM codes for 4PSK-2PSK modulation
Author
Szulakiewicz, P. ; Kotrys, R.
Author_Institution
Politech. Poznanska Inst. Elektron. i Telecommun.
Volume
30
Issue
13
fYear
1994
fDate
6/23/1994 12:00:00 AM
Firstpage
1032
Lastpage
1033
Abstract
The authors present some new multi-dimensional (3-D, 4PSK-2PSK) and 180° rotationally invariant trellis codes that combined with the demodulator (which locks onto the 2PSK signal of the 3-D signal set) allows robust operation at low signal to noise ratios. Examples of the codes are presented for 2, 4, 8, 16 and 32 states. The codes achieve a coding gain of 1.76 dB (for two encoder states) to 5.44 dB (for 42 encoder states) compared to uncoded BPSK. Distance profiles of the codes are shown
Keywords
phase shift keying; trellis codes; 1.76 to 5.44 dB; 180° rotationally invariant trellis codes; 3-D signal; 4PSK-2PSK modulation; TCM codes; coding gain; demodulator; distance profiles; encoder states; multi-dimensional codes; signal to noise ratios;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19940688
Filename
294778
Link To Document