SARPVBR-a VBR rate control algorithm for HFC networks

The paper presents a VBR rate control algorithm for the SARP (simple ATM based reservation protocol) for HFC (hybrid fiber coax) networks. The SARP is a hybrid reservation and rate based protocol, based on ATM, whose main characteristics are its simplicity, high efficiency, and flexibility to suppor...

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Bibliographic Details
Published inIEEE ATM '97 Workshop Proceedings (Cat. No.97TH8316) pp. 486 - 493
Main Authors Macedo, M.M., Nunes, M.S., Ramos, H.D.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1997
Subjects
Bandwidth
Delay estimation
Hybrid fiber coaxial cables
Payloads
Protocols
Roentgenium
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Summary:The paper presents a VBR rate control algorithm for the SARP (simple ATM based reservation protocol) for HFC (hybrid fiber coax) networks. The SARP is a hybrid reservation and rate based protocol, based on ATM, whose main characteristics are its simplicity, high efficiency, and flexibility to support different classes of traffic. SARPVBR tries to match the transmission grant rates given by the controller with the terminals instant transmission rates. To achieve that SARPVBR uses two basic protocol mechanisms: empty cell detection and piggybacking on the transmitted cells of the terminal queue length. Simulation results with square and sinusoidal sources show accurate terminal transmission rate matching, high bandwidth efficiency and low cell delay.
ISBN:0780341961
9780780341968
DOI:10.1109/ATM.1997.624717