Payload nonlinearity impact on the Globalstar forward link multiplex .II. System analysis

Author

De Gaudenzi, Riccardo

Volume

48

Issue

3

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

977

Lastpage

984

Abstract

For pt. I see ibid., vol.48, no.3, p.960-76 (1999). This paper extends at system level the analysis of on-board nonlinearity effects covered by a companion paper. A satellite personal communication network (S-PCN) like Globalstar utilizing bent-pipe transponders and active phased-array antennas in conjunction with code-division multiple access (CDMA) is considered. The present analysis incorporates the effects of payload nonlinearity, variable-rate vocoders, and multibeam interference. It is shown that nonlinearity effects on the system capacity are generally negligible except for extremely loaded beam conditions which are rare events

Keywords

active antenna arrays; antenna phased arrays; channel capacity; code division multiple access; mobile satellite communication; multibeam antennas; multiplexing; multiuser channels; nonlinear distortion; personal communication networks; radiofrequency interference; satellite antennas; satellite links; transponders; vocoders; CDMA; Globalstar forward link multiplex; S-PCN; active phased-array antennas; bent-pipe transponders; code-division multiple access; loaded beam conditions; multibeam interference; on-board nonlinearity effects; payload nonlinearity; satellite personal communication network; system analysis; system capacity; variable-rate vocoders; Artificial satellites; Interference; Multiaccess communication; Payloads; Personal communication networks; Power control; Radio frequency; Satellite broadcasting; Space technology; Vocoders;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.765031

Filename

765031