An Elegant Deadline Calculation for SCED
Lain-Chyr Hwang, Chia-Hsu Kuo, San‐Yuan Wang · Advances in intelligent systems research/Advances in Intelligent Systems Research · 2006
The future multimedia Internet needs mechanisms to provide QoS (Quality of Service) for users.Service curve (SC) is an effective description of QoS and SCED (service curve based earliest deadline first policy) is an efficient scheduling algorithm to guarantee SCs specified by users.Deadline calculation is the core of SCED.The unique treatable SC as we know is the concave piecewise linear SC (CPLSC).This paper re-derives out a more compact and clearer recursive relation of deadline calculation than that in the original SCED and also modifies some defects of the SCED.