Title :
Coding and modulation for mobile satellite systems
Author :
Hassan, Amer A. ; Molnar, Barbara D. ; Wang, Yi-Pin Eric
Author_Institution :
Ericsson Inc., Triangle Park, NC, USA
Abstract :
This paper addresses coding and modulation techniques for handheld mobile satellite communication systems such as ICO, Iridium, and ACeS. The design of modulation and coding for such systems is different than terrestrial systems, and usually different from satellite systems used in fixed services. The differences are due to the fact that traffic channels in mobile satellite systems have to operate in Rician fading channels with typical Rician factors between 7 dB and 14 dB; the control channels for these systems have to operate reliably in a slow Raleigh fading environment. Results on coherent detection for QPSK and GMSK are presented, and a robust error control coding approach is presented and evaluated
Keywords :
Rayleigh channels; Rician channels; error correction codes; fading; minimum shift keying; mobile satellite communication; quadrature phase shift keying; signal detection; telecommunication traffic; ACeS; GMSK; ICO; Iridium; QPSK; Rician factors; Rician fading channels; coherent detection; control channels; handheld mobile satellite communication systems; modulation; robust error control coding; slow Raleigh fading environment; traffic channels; Asia; Communication system traffic control; Control systems; Error correction; Modulation coding; Quadrature phase shift keying; Rayleigh channels; Rician channels; Robust control; Satellite communication;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.605908
