A multistep power control algorithm for land mobile satellite with high dynamic channel

Author

Li, Wenzhen ; Law, Choi Look ; Dubey, V.K.

Author_Institution

Nanyang Technol. Univ., Singapore

Volume

4

fYear

2001

fDate

2001

Firstpage

2965

Abstract

In an LEO satellite CDMA system, power control can only be used to combat long-term signal loss due to long round trip delay, which calls for different considerations on power control algorithms. Based on the criteria of fast response, small overcompensation, oscillation-avoiding, and minimum power control error, the behavior of the transient response of fixed step power control, adaptive power control, and multistep power control are investigated and compared. A new multistep power control algorithm is proposed for LEO satellite communication systems suffering from high variation in the envelope of the received signal, i.e., high dynamics in slow fading

Keywords

adaptive control; code division multiple access; error statistics; fading channels; land mobile radio; mobile satellite communication; multiuser channels; power control; telecommunication control; turbo codes; BER performance; Ka-band; LEO satellite CDMA system; LEO satellite communication systems; Rayleigh/lognormal distributed. channel; Rician distributed channel; adaptive power control; fast response; fixed step power control; high dynamic channel; land mobile satellite channel model; long round trip delay; long-term signal loss; minimum power control error; multistep power control algorithm; oscillation-avoidance; received signal envelope variation; slow fading; small overcompensation; transient response; turbo coding; Adaptive control; Delay; Error correction; Fading; Low earth orbit satellites; Multiaccess communication; Power control; Programmable control; Satellite communication; Transient response;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd

Conference_Location

Rhodes

ISSN

1090-3038

Print_ISBN

0-7803-6728-6

Type

conf

DOI

10.1109/VETECS.2001.944145

Filename

944145