Admission control of multimedia calls in CDMA mobile systems

Author

Jeon, Wha Sook ; Jeong, Dong Geun

Author_Institution

Sch. of Comput. Sci. & Eng, Seoul Nat. Univ., South Korea

Volume

2

fYear

2001

fDate

2001

Firstpage

886

Abstract

This paper proposes a call admission control (CAC) scheme for direct sequence code division multiple access (DS-CDMA) cellular systems supporting mobile multimedia communications services. We consider the systems with multiple call classes in which the required signal-to-interference ratio (SIR) varies according to call classes. The call admission decision in the proposed scheme is based on SIR measurement. The proposed scheme takes account of the traffic asymmetry between uplink and downlink and guarantees the priority of handoff call requests over new call requests. We evaluate the performance of the proposed scheme using Markov analysis and present some numerical examples. As a result, we show that the proposed CAC scheme can operate well in the mobile multimedia systems such as the International Mobile Telecommunications-2000 (IMT-2000) systems

Keywords

Markov processes; cellular radio; code division multiple access; multimedia communication; multiuser channels; radio links; radiofrequency interference; spread spectrum communication; telecommunication congestion control; telecommunication traffic; CDMA mobile systems; DS-CDMA cellular systems; IMT-2000 systems; International Mobile Telecommunications-2000; Markov analysis; SIR measurement; call admission control; cellular radio systems; direct sequence code division multiple access; downlink; handoff call requests priority; mobile multimedia communications services; mobile multimedia systems; multiple call classes; performance evaluation; signal-to-interference ratio; traffic asymmetry; uplink; Admission control; Call admission control; Communication system traffic control; Downlink; Interference; Mobile communication; Multiaccess communication; Multimedia systems; Proposals; 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.2001.944506

Filename

944506