Title :
New coded 8-ary CPFSK schemes
Author :
Karam, Georges ; Fernandez, I. ; Paxal, Vendela
Author_Institution :
SAT Telecommun. Div., Paris, France
Abstract :
New 2/3-rate convolutional codes for 8-ary continuous-phase frequency shift keying (CPFSK) with modulation indices h = 1/8, 1/4, 3/8 nd 1/2 are presented. The design of these coded CPFSK schemes is based on the continuous-phase modulation (CPM) decomposition technique. It is shown that some of the presented codes achieve 2 to 3 dB of gain in minimum Euclidean distance over the best codes found by the conventional optimization technique
Keywords :
continuous phase modulation; convolutional codes; frequency shift keying; optimisation; 2 to 3 dB; 2/3-rate convolutional codes; 8-ary CPFSK schemes; continuous-phase frequency shift keying; decomposition; design; minimum Euclidean distance; modulation indices; optimization; Additive white noise; Constraint optimization; Convolutional codes; Data communication; Euclidean distance; Gain; Modulation coding; Optimization methods; Phase shift keying; Quadrature amplitude modulation;
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.1993.397440
