CSMA/CD/TDMA: a dynamic combination for voice and data integration

Author

Chen, Wei-Hong ; Chung-Chin Lu

Author_Institution

Dept. of Electr. Eng., Nat. Tsing-Hua Univ., Taiwan

fYear

1990

fDate

3-7 Jun 1990

Firstpage

842

Abstract

A hybrid decentralized packet switching protocol for integrated real-time voice and data services on a bus topology local area network is presented. The bus has two states. State transitions depend on the existence of active voice users. Voice follows a modified version of time-division multiple-access (TDMA), whereas carrier-sense multiple-access with collision detection (CSMA/CD) is adopted for the channel access policy for data. The real-time requirement for voice is satisfied and a loss will not occur if the maximum number of calls is set properly. A fraction of the bandwidth is always reserved for data. Silence periods are detected and saved for data. Analytical results are derived by steady-state equivalent queuing models. Simulation results are close to analytical results

Keywords

carrier sense multiple access; local area networks; packet switching; protocols; time division multiple access; voice communication; CSMA/CD/TDMA; LAN; bus topology local area network; carrier-sense multiple-access; collision detection; hybrid decentralized packet switching protocol; time-division multiple-access; voice and data integration; Bandwidth; Data analysis; Local area networks; Multiaccess communication; Network topology; Packet switching; Protocols; Queueing analysis; Steady-state; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

INFOCOM '90, Ninth Annual Joint Conference of the IEEE Computer and Communication Societies. The Multiple Facets of Integration. Proceedings, IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-8186-2049-8

Type

conf

DOI

10.1109/INFCOM.1990.91330

Filename

91330