Erlang capacity of multiclass CDMA cellular system

Author

Castañeda-Camacho, Josefina ; Lara-Rodríguez, Domingo

Author_Institution

Commun. Sect., CINVESTAV-IPN, Mexico City, Mexico

Volume

1

fYear

2001

fDate

2001

Firstpage

537

Abstract

In this paper we evaluate the reverse link capacity of direct sequence-code division multiple access (DS-CDMA) cellular system supporting multiclass services. We present an approximated analysis of the Erlang capacity, considering that blocking in CDMA occurs when the interference level reaches a predetermined level above the background noise level of mainly thermal origin. We investigate the effect of important factors on capacity: (1) variation of the energy-to-interference E_b/I₀ ratio according to propagation conditions for each multiservice user, (2) multiservice user activity, (3) multicode or multirate transmission, (4) handoff, (5) Poisson arrival process and (6) non uniform load in each cell

Keywords

broadband networks; cellular radio; channel capacity; code division multiple access; radiofrequency interference; spread spectrum communication; DS-CDMA; Erlang capacity; direct sequence-code division multiple access; energy-to-interference ratio; interference level; load; multiclass CDMA cellular system; multicode transmission; multirate transmission; multiservice user; propagation conditions; reverse link capacity; user activity; Background noise; Base stations; Fading; Interference; Multiaccess communication; Power control; Power system modeling; Shadow mapping; Speech analysis; Traffic control;

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.2001.944900

Filename

944900