OCGRR: A New Scheduling Algorithm for Differentiated Services Networks
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Joined: Dec 2008
28-11-2009, 07:56 PM
OCGRR (Output Controlled Grant-based Round Robin), OCGRR supports different service traffic in a core router. Same class packets are send to the destination of the core router output port. In before scheduling the frame, each output port streams of data are stored at one separate Buffer .Now perform the scheduling operation.(Arranging one particular order) at each buffer. At last each buffer placed in one frame. After Scheduling, sequence of transmission traffic occurs then streams of frames (data) are transferred to the order of Highest Priority traffic to Lowest Priority traffic. Frame may have a number of small rounds for each class. In the frame, when we allow or permit (grant) then that time only each class streams of packets are transmitted one by one. Only one packet are transmitted in one single round. It is helpful to reducing intermission time from the same stream and achieving smaller Jitter and startup Lattency.Jitter - >Jitter is the variability of packet delays within the same packet stream. Some times lowest priority classes buffer frames not send then(Starvation) that time we are changing the permission( Grant ) for that particular class. These kind of permission adjustment helpful to transit the Lower Priority Classes frames.
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Joined: Sep 2010
07-09-2010, 12:21 PM
i want to IEEE base paper for this paper