Title : 
Innovative communications systems and services for travelers
         
        
        
            Author_Institution : 
BNR, Ottawa, Ont., Canada
         
        
        
        
        
            Abstract : 
Mobile satellite services provided to the people, and objects, traveling by land, sea, or air, are compared with corresponding terrestrial-only services. Parameters such as service quality, operating environment, spectral efficiency in a multibeam (multicell)-Doppler-effected Ricean channel, choice of modulation, coding, and multiple access-constrained by equipment miniaturization and price-are analyzed. It is concluded that innovative satellite systems such as barostationary satellites could offer compatibility with cellular systems and superior performance
         
        
            Keywords : 
mobile communication systems; satellite relay systems; telecommunication services; air; barostationary satellites; cellular systems; coding; communications systems; compatibility; equipment miniaturization; equipment price; land; mobile satellite services; modulation; multibeam Doppler effected Ricean channel; multiple access; operating environment; satellite systems; sea; service quality; spectral efficiency; Artificial satellites; Cellular phones; Cities and towns; Costs; Frequency modulation; Land mobile radio cellular systems; Satellite broadcasting; TV; Telephony; Wire;
         
        
        
        
            Conference_Titel : 
Communications, 1988. ICC '88. Digital Technology - Spanning the Universe. Conference Record., IEEE International Conference on
         
        
            Conference_Location : 
Philadelphia, PA
         
        
        
            DOI : 
10.1109/ICC.1988.13723