Chouinard, Jean-Yves,Rao, Nan Yuan.2009-03-252009-03-2519941994Source: Masters Abstracts International, Volume: 34-02, page: 0836.9780612005518http://hdl.handle.net/10393/9674http://dx.doi.org/10.20381/ruor-16451The increasing demand of the frequency spectrum for land mobile satellite communication services has led to the approach of moving the current operating frequency up to EHF (30/20 GHz) band. In this thesis, the propagation characteristics of the EHF mobile satellite communication channel are estimated and modeled. Conventional and multiple trellis-coded modulation schemes designed for fading environment are considered for the EHF mobile satellite channel. The design criteria for optimum trellis-coded modulation scheme on the folding channel are studied. Through computer simulation, the performances of both coherent and differential trellis-coded modulation systems with selected coding schemes on the EHF channel models are evaluated. The effects of using channel state information and interleaving technique on the trellis-coded modulation systems are also studied. Finally the simulation results are presented and discussed.142 p.Engineering, Electronics and Electrical.Thesis