DLB: a novel real-time QoS control mechanism for multimedia transmission Online publication date: Fri, 05-Jun-2009
by Jian Li, Ye-Qiong Song
International Journal of High Performance Computing and Networking (IJHPCN), Vol. 6, No. 1, 2009
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.
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