Bandwidth management for AAL2 traffic

Author

Saito, Hiroshi

Author_Institution

NTT Service Integration Labs., Tokyo, Japan

Volume

49

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

1364

Lastpage

1377

Abstract

Bandwidth management in AAL2 networks is investigated mainly from the traffic performance point of view. AAL2 is a new asynchronous transfer mode (ATM) adaptation layer. Since it is designed to carry low-bit-rate voice signals efficiently, it should be used in the ATM backbone for mobile networks, especially in the IMT-2000 network (International Mobile Telecommunication in the Year 2000 network). Three alternatives for bandwidth management, which differ in the way the ATM layer service is used and how admission of AAL2 connections to a virtual channel (VC) is judged, are shown and their performances are evaluated theoretically. The best performance is obtained by the alternative of using unspecified bit rate VCs and judging admission of AAL2 connections to a virtual path. The advantage of using a variable bit rate is found to be limited. The effectiveness of introducing AAL2 switching nodes is also shown

Keywords

asynchronous transfer mode; land mobile radio; packet radio networks; radio spectrum management; telecommunication congestion control; telecommunication traffic; AAL2 traffic; ATM backbone; IMT-2000 network; UBR; VBR; VC; VP; adaptation layer; asynchronous transfer mode; bandwidth management; low-bit-rate voice signals; mobile network; switching nodes; traffic performance; unspecified bit rate; variable bit rate case; virtual channel; virtual path; Asynchronous transfer mode; Bandwidth; Degradation; Mobile communication; Payloads; Performance evaluation; Signal design; Spine; Telecommunication traffic; Virtual colonoscopy;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.875261

Filename

875261