期刊名称：International Journal of Computer, Information, and Systems Science, and Engineering
印刷版ISSN：1307-2331
出版年度：2007
卷号：1
期号：1
出版社：World Academy of Science, Engineering and Technology
摘要：In this paper, we provide complete end-to-end delay
analyses including the relay nodes for instant messages. Message
Session Relay Protocol (MSRP) is used to provide congestion control
for large messages in the Instant Messaging (IM) service. Large
messages are broken into several chunks. These chunks may traverse
through a maximum number of two relay nodes before reaching
destination according to the IETF specification of the MSRP relay
extensions. We discuss the current solutions of sending large instant
messages and introduce a proposal to reduce message flows in the IM
service. We consider virtual traffic parameter i.e., the relay nodes are
stateless non-blocking for scalability purpose. This type of relay
node is also assumed to have input rate at constant bit rate. We
provide a new scheduling policy that schedules chunks according to
their previous node¡¯s delivery time stamp tags. Validation and
analysis is shown for such scheduling policy. The performance
analysis with the model introduced in this paper is simple and
straight forward, which lead to reduced message flows in the IM
service.
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