Downlink capacity analysis for DS-CDMA satellite systems accounting for on-board power constraints

Author

Cianca, Ernestina ; De Fina, Silvia ; Lojacono, Roberto ; Ruggieri, Marina ; Prasad, Ramjee

Author_Institution

Dept. of Electron. Eng., Rome Univ., Italy

Volume

1

fYear

2000

fDate

36770

Firstpage

319

Abstract

This paper presents a novel methodology for the analysis of the downlink of a DS-CDMA mobile satellite system which allows one to evaluate the impact of the power limitations expected in a satellite-based access in terms of capacity. The methodology has been applied to compare an optimum power control, providing BER-driven thresholds, with a pure signal-to-interference ratio (SIR)-based strategy. Relationships among service BER, channel states statistic and expected dynamic range of the outer-loop process are derived. Concluding remarks on the power management policy, and its impact on the overall capacity, are given

Keywords

channel capacity; code division multiple access; error statistics; mobile satellite communication; multiuser channels; optimal control; power control; radio links; radiofrequency interference; spread spectrum communication; telecommunication control; BER-driven thresholds; DS-CDMA satellite systems; SIR; channel states statistic; downlink capacity analysis; dynamic range; on-board power constraints; optimum power control; outer-loop process; power limitations; power management policy; satellite-based access; service BER; signal-to-interference ratio; 3G mobile communication; Diversity reception; Downlink; Energy management; Interference; Multiaccess communication; Power control; Power system management; Satellite broadcasting; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2000 IEEE Sixth International Symposium on

Conference_Location

Parsippany, NJ

Print_ISBN

0-7803-6560-7

Type

conf

DOI

10.1109/ISSSTA.2000.878137

Filename

878137