A priority media access control protocol for video communication support on CSMA/CD LANs

Edwards, Francis R. and Schulz, Mark F. (1995) A priority media access control protocol for video communication support on CSMA/CD LANs. Multimedia Systems, 2 6: 243-255. doi:10.1007/BF01225242


Author Edwards, Francis R.
Schulz, Mark F.
Title A priority media access control protocol for video communication support on CSMA/CD LANs
Journal name Multimedia Systems   Check publisher's open access policy
ISSN 0942-4962
1432-1882
Publication date 1995-01-01
Sub-type Article (original research)
DOI 10.1007/BF01225242
Open Access Status
Volume 2
Issue 6
Start page 243
End page 255
Total pages 13
Place of publication Heidelberg, Germany
Publisher Springer
Language eng
Formatted abstract
Real-time multimedia communication applications demand performance requirements which differ significantly from conventional data communication applications. Current local area networks (LANs) provide efficient transport for bursty data traffic; however, they cannot necessarily provide quality of service guarantees for real-time communications. In this work we introduce and investigate an experimental priority protocol for supporting real-time communication on Ethernet, a popular implementation of multiple-access broadcast bus LANs. We examine the new protocol, known as Priority Mode-CSMA/CD (PM-CSMA/CD), providing a high priority (HP) class with CSMA/CD employed for standard priority (SP) traffic. PM-CSMA/CD performance is examined through computer simulation of videotelephony workstations operating over the shared bus LAN. Over all observed traffic conditions, the priority protocol provides performance satisfying real-time packet transport requirements of audio and video streams. The primary advantage of our protocol over similar priority schemes is its physical layer compatibility with standard CSMA/CD. The protocol also provides improved channel utilization with increasing high priority load, with no penalty in SP class performance at low to medium network loads.
Keyword Priority
Ethernet
Videotelephony
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Tue, 21 Apr 2015, 13:42:21 EST by Mark Schulz on behalf of School of Mathematics & Physics