On dynamic packet fragmentation for traffic integration over bandwidth-limited links. (6th January 2009)

• Record Type: Journal Article
• Authors: Guo, Liang; Lee, Whay Chiou; Lin, Ying-ieh
• Is Part Of: International journal of communication networks and distributed systems. Volume 2:Number 2/3(2009)
• Page Start: 181
• Page End: 197
• Publication Date: 2009-01-06
• Subjects: packet fragmentation -- QoS -- quality of service -- scheduling -- home network gateways -- traffic integration -- bandwidth limits -- isochronous traffic -- best-effort traffic -- home networks; Computer networks -- Periodicals; Telecommunication systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; 004.6
• Languages: English
• ISSNs: 1754-3916

Abstract

We consider a home networking system for integrating packetised isochronous and best-effort traffic over a shared link with limited bandwidth, wherein the isochronous traffic comprises multiple isochronous flows, each associated with a periodic packet arrival process having a constant isochronous packet transmission period. In such a system, best-effort packets of variable size can render it impossible to guarantee QoS of the isochronous traffic. We propose a dynamic packet fragmentation method to integrate isochronous and best-effort traffic. In particular, the method supports packet fragmentation with fixed size or variable size packets. We show that the method effectively increases link utilisation and best-effort traffic throughput, without violating the delay and jitter requirements for isochronous traffic.