DocumentCode :
1394334
Title :
A study of slot reuse in dual bus multiple access networks
Author :
Garrett, Mark W. ; Li, San-qi
Author_Institution :
Bell Commun. Res., Morristown, NJ, USA
Volume :
9
Issue :
2
fYear :
1991
fDate :
2/1/1991 12:00:00 AM
Firstpage :
248
Lastpage :
256
Abstract :
In dual unidirectional bus networks, packets usually occupy fixed-length slots form the sending station to the end of the network. An erasure node is a specialized station which recognizes packets which have passed their destination stations and releases the slots for subsequent use. The authors derive the optimal locations for erasure nodes and show analytically, for uniform traffic, that only several erasure nodes are needed to achieve throughput close to twice the nominal network bandwidth. The results are tested by simulation of the DQDB (distributed queue dual bus) protocol, which demonstrates a realistic improvement of 40% with only three erasure nodes. Fair access among the stations is improved as well. The authors generalize the analytic results by providing an algorithm for determining the optimal erasure node locations and the throughput improvement, given any arbitrary traffic pattern. The application of this methodology to the related problem of bridged subnetworks is briefly discussed
Keywords :
multi-access systems; packet switching; protocols; telecommunication traffic; bridged subnetworks; distributed queue dual bus; dual bus multiple access networks; erasure node; protocol; slot reuse; traffic pattern; unidirectional bus networks; Bandwidth; Delay; Intelligent networks; Magnetic heads; Optical receivers; Protocols; Telecommunication traffic; Throughput; Topology; Traffic control;
fLanguage :
English
Journal_Title :
Selected Areas in Communications, IEEE Journal on
Publisher :
ieee
ISSN :
0733-8716
Type :
jour
DOI :
10.1109/49.68454
Filename :
68454
Link To Document :
بازگشت