Research on Multimedia Transmission Controlled Scheduling Algorithm on Internet
Zhong-Cheng Yu, Qian-Zhu Shi, Chao Liu · Journal of Communication and Computer · 2010
On the internet, the information of media streaming are abundant day by day. These A/V oriented applications, which have the characteristics of big data amount, high real-time and so on, can get an enormous challenge out of network resources. However, conventional real-time schedulers such as EDF (Earliest Deadline First) and RM (Rate Monotonic) are designed for task sets with sophisticated characteristics. They can perform well in the idea network with precise workloads. In a realistic network with shared bandwidth and unpredictable workloads, their performances may be poor. In this paper, a BC-EDF (Buffer-Controlled EDF) control-theoretical is proposed to resolve the real-time scheduling problem in multimedia communications. It can tolerate diverse system behaviors to provide reliable multimedia communications and playback quality. Experiments show that BC-EDF outperforms other schedule mechanisms.