DocumentCode
3432467
Title
TCM codes for 4PSK-2PSK modulation with invariance under rotation
Author
Szulakiewicz, Pawel
Author_Institution
Inst. Elektroniki i Telekomunikacji, Politechnika Poznanska, Poland
fYear
1992
fDate
16-20 Nov 1992
Firstpage
1131
Abstract
The paper contains an example of designing a 180° rotationally invariant TCM code with 3-dimensional 4PSK-2PSK signal space. All encoder input bits are carried directly to the output. No differential encoder is necessary. This eliminates the error multiplication effect caused by the differential decoding operation in the receiver. Examples are presented for 2, 4, 8, 16 and 32 encoder states. The codes achieve coding gain of 1.76 dB (for 2 encoder states) of 5.44 dB (for 32 encoder states) compared with the uncoded BPSK
Keywords
phase shift keying; trellis codes; 3-dimensional 4PSK-2PSK signal space; coding gain; differential decoding; rotationally invariant TCM code; Binary phase shift keying; Constellation diagram; Convolutional codes; Decoding; Gain; Modulation coding; Phase detection; Quadrature phase shift keying; Signal design; Viterbi algorithm;
fLanguage
English
Publisher
ieee
Conference_Titel
Singapore ICCS/ISITA '92. 'Communications on the Move'
Print_ISBN
0-7803-0803-4
Type
conf
DOI
10.1109/ICCS.1992.255085
Filename
255085
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