A Multi-Bit-Rate Substitute-Communication System with High Call-Carrying Capacity

Author

Yokoyama, Masaaki ; Yamamoto, Hajime ; Kajiwara, Masaichi

Author_Institution

Nippon Telegraph and Telephone Public Corp., Musashinoshi, Tokyo, Japan

Volume

31

Issue

6

fYear

1983

fDate

6/1/1983 12:00:00 AM

Firstpage

799

Lastpage

803

Abstract

A multi-bit-rate substitute-communication system (MSCS) is an efficient means to achieve higher call-carrying capacity in a congested network. When a trunk line is congested with a large amount of traffic, MSCS makes subscribers communicate by a lowerbit-rate medium, even though they request higher-bit-rate forms. This limitation is made when the number of idle basic channels is less than or equal to the predetermined system constant. This paper describes the control method, traffic characteristics, and concrete traffic design method, using a dual-bit-rate class (64 kbits/s, 8 kbits/s) model. It is found that the MSCS carries about five times as many calls as a conventional network without the MSCS.

Keywords

Communication switching; Switching, communication; Telephone systems; Bit rate; Communication system control; Communication system traffic control; Design methodology; Graphics; Telecommunication congestion control; Telecommunication control; Telecommunication traffic; Telephony; Traffic control;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOM.1983.1095892

Filename

1095892