Average external interference in cellular radio CDMA systems

Author

Chebaro, Toufic ; Godlewski, Philippe

Author_Institution

Telecom Paris, France

Volume

44

Issue

1

fYear

1996

fDate

1/1/1996 12:00:00 AM

Firstpage

23

Lastpage

25

Abstract

An analytical and numerical evaluation by Gilhoussen et. al.(see IEEE Trans. Veh. Technol, vol.40, no.2, p.303-3121, 1991) of the capacity of a cellular radio CDMA system has been proposed. This evaluation has shown the interest of using spread spectrum techniques in the area of cellular radio systems. However, considering the computations made by Gilhoussen et. al. for the reverse link, we note the following: the calculations lead at a given moment to the evaluation of the average external interference for which a quantity is claimed only intuitively to be an upper bound. We construct a sequence of approximations for the average external interference, where the average external interference is the sequence limit. The claimed upper bound of Gilhoussen is also the first element of this sequence of approximations. We show by numerical means that the sequence is decreasing which justifies the claim of Gilhoussen

Keywords

approximation theory; cellular radio; code division multiple access; land mobile radio; radio links; radiofrequency interference; sequences; spread spectrum communication; analytical evaluation; approximations; average external interference; cellular radio CDMA system; numerical evaluation; reverse link; sequence limit; spread spectrum techniques; upper bound; Bandwidth; Communications Society; Interference; Land mobile radio cellular systems; Multiaccess communication; Random variables; Shadow mapping; Spread spectrum communication; Telecommunications; Upper bound;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.476091

Filename

476091