Title :
A 4-state asymmetric 8-PSK TCM scheme for Rayleigh fading channels optimum at high SNRs
Author :
Khan, Md Zafar Ali ; Rajan, B. Sundar
Author_Institution :
Dept. of Electr. Commun. Eng., Indian Inst. of Sci., Bangalore, India
Abstract :
We use an asymmetric 8-PSK signal set in a 4-state rate 2/3 trellis-coded modulation (TCM) scheme for fading channels to show performance gain over known TCM schemes with symmetric and known asymmetric constellations. This scheme is an example of TCM schemes over fading channels where performance gain can be achieved at high SNRs, without increasing the minimum squared product distance, effective length or decreasing the multiplicity. Simulations for Rayleigh fading channels, using Monte Carlo simulation, are presented
Keywords :
Monte Carlo methods; Rayleigh channels; digital simulation; noise; phase shift keying; trellis coded modulation; 4-state asymmetric 8-PSK TCM; Monte Carlo simulation; Rayleigh fading channels; SNR; asymmetric 8-PSK signal set; asymmetric constellations; asymptotic error analysis; code design; effective length; minimum squared product distance; performance gain; simulations; symmetric constellations; trellis-coded modulation; Bandwidth; Constellation diagram; Error analysis; Euclidean distance; Fading; Interleaved codes; Modulation coding; Performance gain; Phase shift keying; Rayleigh channels;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851546
