Experimental test results of an asynchronous DS-CDMA satellite system

Author

Nogueira, Alexandre H. ; De Carvalho, Pado Henrique P ; Soares, Antonio J M

Author_Institution

Air Minist., Brazil

Volume

1

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

35

Abstract

In this work a satellite communication system operating in an asynchronous DS-CDMA scheme is presented. The system is submitted to a set of tests in order to verify its behavior concerning the bit error rate and the loss of synchronism as a function of the process gain and the levels of interference. An investigation on the transmission of DS-CDMA signals over a shared frequency band with QPSK narrowband signals is also performed. An analytical method to determine the capacity of shared carriers in the frequency band in a DS-CDMA scheme is presented and experimentally tested.

Keywords

channel capacity; code division multiple access; error statistics; mobile satellite communication; quadrature phase shift keying; radiofrequency interference; spread spectrum communication; telecommunication equipment testing; QPSK narrowband signals; asynchronous DS-CDMA; bit error rate; code division multiple access; interference levels; process gain; satellite communication system; shared frequency band; signal transmission; synchronism loss; system capacity; tests; Bit error rate; Frequency synchronization; Interference; Modems; Multiaccess communication; Performance gain; Propagation losses; Satellite communication; Signal processing; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 2001. IMOC 2001.Proceedings of the 2001 SBMO/IEEE MTT-S International

Print_ISBN

0-7803-7065-1

Type

conf

DOI

10.1109/SBMOMO.2001.1008713

Filename

1008713