Title:
MAC Protocols for Multimedia Data over HFC Architecture
MAC Protocols for Multimedia Data over HFC Architecture
Authors
Sala, Dolors
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Abstract
Supporting multimedia services and real-time communications in broadcast
networks brings new challenges in the design of MAC protocols, specially in
those network architectures that are restricted to a contention based physical
medium. The Media Access Protocol (MAC) has to be flexible enough in order
to immediately adjust to new incoming events. Three main mechanisms
control this flexibility: Connection admission control, Priority mechanism
and Scheduling discipline. This study concentrates on the integration of the
basic MAC protocol with a priority mechanism and a scheduling discipline.
Moreover, the new emerging HFC (Hybrid Fiber/Coax) architecture is taken as
the basis for the study. The main challenge related to the priority scheme is
the Contention Resolution Algorithm (CRA). The tradeoff simplicity versus
reactive time leads to the design of the scheduling discipline.
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Date Issued
1995
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402102 bytes
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Text
Resource Subtype
Technical Report