Title :
Performance study for a DS/CDMA-based LEO satellite system-equatorial constellation
Author :
Lim, May-Lin ; Gunawan, Erry ; Kishore, Dubey Vimal
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
Various performance studies have been done on CDMA-based LEO satellite network. However, most of these researches focus on satellite constellation with polar orbit due to its attractive commercial interest. Today, in view of the rapid growth in equatorial countries especially south east Asia (SEA), there is an urge to divert attention to this region. In this paper, the performance studies of the CDMA-based equatorial LEO satellite system are done on a downlink. The equatorial satellite constellation is based on the MERLION project, which is a joint satellite program of Nanyang Technological University and the University of Surrey. Henceforth, the effects of variation in elevation angles to the system performance is investigated based on the satellite constellation designed in the presence of multipath diversity and multisatellite diversity. The performance is reflected by the bit error rate of the various scenarios
Keywords :
code division multiple access; diversity reception; error statistics; fading channels; multipath channels; multiuser channels; radio networks; satellite communication; spread spectrum communication; BER; DS/CDMA-based LEO satellite system; LEO satellite network; MERLION project; Nanyang Technological University; South East Asia; University of Surrey; bit error rate; channel models; downlink; elevation angles variation; equatorial countries; equatorial satellite constellation; fading spectra shaping; multipath diversity; multisatellite diversity; performance study; rural channel; system performance; urban channel; AWGN; Artificial satellites; Asia; Bit error rate; Downlink; Low earth orbit satellites; Multiaccess communication; Satellite constellations; System performance; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE
Conference_Location :
Sydney,NSW
Print_ISBN :
0-7803-4984-9
DOI :
10.1109/GLOCOM.1998.776564
