Performance study for a DS/CDMA-based LEO satellite system-equatorial constellation

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.

[1]  C. Loo,et al.  Computer models for fading channels with applications to digital transmission , 1991 .

[2]  Axel Böttcher,et al.  Analysis of System Parameters for LEO/ICO-Satellite Communication Networks , 1995, IEEE J. Sel. Areas Commun..

[3]  Chun Loo,et al.  A statistical model for a land mobile satellite link , 1985, IEEE Transactions on Vehicular Technology.

[4]  Savo Glisic,et al.  Issues in CDMA applications for mobile LEO satellite communications , 1996, Proceedings of ISSSTA'95 International Symposium on Spread Spectrum Techniques and Applications.

[5]  Uwe-Carsten Fiebig,et al.  Design study for a CDMA-based third-generation mobile radio system , 1994, IEEE J. Sel. Areas Commun..

[6]  Roberto Padovani,et al.  Increased Capacity Using CDMA for Mobile Satellite Communication , 1990, IEEE J. Sel. Areas Commun..

[7]  John G. Proakis,et al.  Probability, random variables and stochastic processes , 1985, IEEE Trans. Acoust. Speech Signal Process..

[8]  Daniel Cygan,et al.  The land mobile satellite communication channel-recording, statistics, and channel model , 1991 .

[9]  J.E. Mazo,et al.  Digital communications , 1985, Proceedings of the IEEE.

[10]  L. B. Milstein,et al.  Downlink DS CDMA performance over a mobile satellite channel , 1996 .

[11]  W L Pritchard,et al.  Satellite communication systems engineering , 1986 .

[12]  Matti Latva-aho,et al.  Design Study for a CDMA-Based LEO Satellite Network: Downlink System Level Parameters , 1996, IEEE J. Sel. Areas Commun..

[13]  Laurence B. Milstein,et al.  Total Capacity in a Shared CDMA LEOS Environment , 1995, IEEE J. Sel. Areas Commun..

[14]  Laurence B. Milstein,et al.  Performance of DS-CDMA with imperfect power control operating over a low earth orbiting satellite link , 1994, IEEE J. Sel. Areas Commun..

[15]  Marco Luise,et al.  Advances in satellite CDMA transmission for mobile and personal communications , 1996 .