The dynamic 3-tier protocol: an access remedial scheme to control unfairness in DQDB MANs

Author

Kumar, Lakshmana N. ; Douligeris, Christos

Author_Institution

Dept. of Electr. & Comput. Eng., Miami Univ., Coral Gables, FL, USA

fYear

1994

fDate

1994

Firstpage

92

Lastpage

101

Abstract

This paper addresses the unfairness problems of a DQDB network through an structured access remedial scheme, viz., the dynamic 3-tier protocol. At low load domains, the original DQDB protocol performance is retained. At heavy loads, a dynamic bandwidth control mechanism, named Alpha Tuning Mechanism, is activated. With the right choice of the α-parameter, it is possible to match the service pattern (in terms of channel bandwidth) offered by the access protocol with the actual demand (or traffic) pattern in the network. At low load domains an anticipatory demand function (Δ) addresses latency related unfairness. The results demonstrate the effectiveness of this approach

Keywords

access protocols; metropolitan area networks; performance evaluation; telecommunication traffic; α-parameter; Alpha Tuning Mechanism; DQDB MAN; DQDB network; DQDB protocol performance; access protocol; access remedial scheme; anticipatory demand function; channel bandwidth; demand pattern; dynamic 3-tier protocol; dynamic bandwidth control; latency related unfairness; service pattern; structured access remedial scheme; unfairness control; unfairness problems; Access protocols; Bandwidth; Channel capacity; Communication system traffic control; Delay; Pattern matching; Road transportation; Telecommunication traffic; Throughput; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Local Computer Networks, 1994. Proceedings., 19th Conference on

Conference_Location

Minneapolis, MN

Print_ISBN

0-8186-6680-3

Type

conf

DOI

10.1109/LCN.1994.386611

Filename

386611