Hei Xiaojun
The Internet has become the dominant networking technology, but today's Internet only provides a best-effort service, and thus the need for multimedia communication with Qualify of Service (QoS) guarantee over the Internet brings more challenges in the network traffic engineering. The key tool box to deal with the QoS issues is to properly manage or control the networks' shared resources. We have to resolve the trade-off between network resources and QoS requirements, while accurate modeling of the offered traffic load is the very first step in optimizing resource allocation. In this report, we present a survey of the self-similarity phenomenon observed in the Internet traffic and its implications on network performance. Our study aims to explore the methods to take the self-similarity into account in the network engineering efforts. In particular, under the self-similar traffic input, the fairness property of the Earliest Deadline Scheduling with a stateless buffer management scheme (CHOKe) is also investigated on a simulation base. The simulation results show that the traffic self-similarity puts impacts upon the system.