A Proposal of Network Protocol with Performance for Multimedia Communication System*

Ken OHTA  Takashi WATANABE  Tadanori MIZUNO  

IEICE TRANSACTIONS on Information and Systems   Vol.E79-D   No.6   pp.719-727
Publication Date: 1996/06/25
Online ISSN: 
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Issue on Multimedia Computing and Communications)
time-critical-communication,  network protocol,  packet-scheduling,  multimedia communication system,  

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Time-critical-communication, which should guarantee a time limit of a communication service is getting important in multimedia and factory automation fields. This paper proposes an IP-based protocol, Network Protocol with Performance (NPP) to provide the advanced best-effort service which takes a time constraint into account for real-time applications on the Internet. NPP uses the packet-scheduling function to make an effort to guarantee time constraints. Packet-scheduling algorithm chooses a packet in a NPP queue by a precedent level and a time constraint of each packet. We also discuss an application of NPP to multimedia communication system, and investigate performance of NPP by simulation.