Reverse link Erlang capacity of a W-CDMA system supporting voice and WWW users

Author

Golaup, Assen ; Aghvami, A.H.

Author_Institution

Centre for Telecommun. Res., King´´s Coll. London, UK

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

605

Abstract

It is expected that the main service that will exist on 3G mobile systems, besides voice, will be World Wide Web (WWW) based services. 3G systems (e.g. UMTS) will be based on W-CDMA. We present an approximate analysis of the Erlang capacity of the reverse link of such a system. We compare our analysis with a simulation. Our results show that the Gaussian approximation is quite accurate at high traffic intensities but underestimates the outage probability at low traffic intensities. Using this approximation, it was found that Web page traffic can have a significant impact on the voice Erlang capacity. It was also found that the higher the bit rate of the Web traffic, the lower was the Web traffic Erlang capacity, for the same voice traffic and outage probability

Keywords

Gaussian distribution; Internet; cellular radio; channel capacity; code division multiple access; integrated voice/data communication; packet radio networks; telecommunication traffic; 3G mobile systems; Gaussian approximation; UMTS; W-CDMA system; WWW services; World Wide Web services; outage probability; reverse link Erlang capacity; traffic intensity; voice services; 3G mobile communication; Analytical models; Bit rate; Capacity planning; Gaussian approximation; Multiaccess communication; Traffic control; Web pages; Web sites; World Wide Web;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th

Conference_Location

Atlantic City, NJ

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.956841

Filename

956841