Title :
Ring-TCM for fixed and fading channels: land-mobile satellite fading channels with QAM
Author :
Carrasco, R.A. ; Farrell, P.G.
Author_Institution :
Sch. of Eng., Staffordshire Univ., Stafford, UK
fDate :
10/1/1996 12:00:00 AM
Abstract :
The authors investigate ring-TCM codes suitable for M-QAM signal sets on nonfrequency-selective fading channels. A new range of nonrotational invariant (NRI) and rotational invariant (RI) fading-optimised ring-TCM codes suitable for rectangular M-QAM schemes is presented. The trade off between the code gain and the decoder complexity of these codes is analysed, and their actual performance under different fading channel conditions is evaluated. In addition, a comparison with the best fading-optimised TCM codes for M-QAM reported in the literature is carried out
Keywords :
Gaussian channels; decoding; fading; land mobile radio; mobile satellite communication; quadrature amplitude modulation; trellis coded modulation; AWGN channel; M-QAM signal sets; code gain; decoder complexity; fading-optimised TCM codes; fixed channels; land mobile satellite; nonfrequency-selective fading channels; nonrotational invariant codes; performance; rectangular M-QAM schemes; ring-TCM codes; rotational invariant codes;
Journal_Title :
Communications, IEE Proceedings-
DOI :
10.1049/ip-com:19960739
