DLB: a novel real-time QoS control mechanism for multimedia transmission. (8th June 2009)

• Record Type: Journal Article
• Authors: Li, Jian; Song, Ye-Qiong
• Is Part Of: International journal of high performance computing and networking. Volume 6:Number 1(2009)
• Page Start: 4
• Page End: 14
• Publication Date: 2009-06-08
• Subjects: real-time transmission -- QoS -- quality of service -- queue management -- multimedia transmission -- packet drops; High performance computing -- Periodicals; Computer networks -- Periodicals; High performance computing; Periodicals; 004.05
• Languages: English
• ISSNs: 1740-0562

Abstract

This paper presents a new real-time Quality of Service (QoS) scheme, called Relaxed (m, k)-firm, for multimedia flow transmission which can tolerate occasional packet drops. In contrast to traditional real-time constraint, Relaxed (m, k)-firm requires the transmission delay constraint on a group of any k consecutive packets instead of imposing a transmission delay constraint per packet. Due to this relaxation, this novel scheme can achieve high resource utilisation. A new traffic control mechanism, called Double-Leaks Bucket (DLB), is also proposed to selectively drop a proportion of packets in case of network congestion while still guaranteeing the R-(m, k)-firm constraint.