Title :
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
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;
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
DOI :
10.1109/INFCOM.1990.91330
