Title :
SARPVBR-a VBR rate control algorithm for HFC networks
Author :
Macedo, Mário M. ; Nunes, Mário S. ; Ramos, Hermínio D.
Author_Institution :
INESC, Lisbon, Portugal
Abstract :
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
Keywords :
access protocols; asynchronous transfer mode; channel capacity; coaxial cables; optical fibre networks; telecommunication control; HFC networks; SARPVBR; VBR rate control algorithm; empty cell detection; high bandwidth efficiency; hybrid fiber coax networks; low cell delay; piggybacking; protocol mechanisms; simple ATM based reservation protocol; simulation; sinusoidal sources; square sources; terminal queue length; terminal transmission rate matching; terminals instant transmission rates; traffic; transmission grant rates; transmitted cells; Bandwidth; Delay estimation; Hybrid fiber coaxial cables; Payloads; Protocols; Roentgenium;
Conference_Titel :
IEEE ATM Workshop 1997. Proceedings
Conference_Location :
Lisboa
Print_ISBN :
0-7803-4196-1
DOI :
10.1109/ATM.1997.624717
