A Cross-Layer Optimized Scheme and Its Application in Mobile Multimedia Networks with QoS Provision

N.-S. Vo, T.Q. Duong, H.-J. Zepernick, M. Fiedler

Research output: Contribution to journalArticle

12 Citations (Scopus)


To cope with the rapid growth of multimedia applications that requires dynamic levels of quality of service (QoS), cross-layer (CL) design, where multiple protocol layers are jointly combined, has been considered to provide diverse QoS provisions for mobile multimedia networks. However, there is a lack of a general mathematical framework to model such CL scheme in wireless networks with different types of multimedia classes. In this paper, to overcome this shortcoming, we therefore propose a novel CL design for integrated real-time/non-real-time traffic with strict preemptive priority via a finite-state Markov chain. The main strategy of the CL scheme is to design a Markov model by explicitly including adaptive modulation and coding at the physical layer, queuing at the data link layer, and the bursty nature of multimedia traffic classes at the application layer. Utilizing this Markov model, several important performance metrics in terms of packet loss rate, delay, and throughput are examined. In addition, our proposed framework is exploited in various multimedia applications, for example, the end-to-end real-time video streaming and CL optimization, which require the priority-based QoS adaptation for different applications. More importantly, the CL framework reveals important guidelines as to optimize the network performance
Original languageEnglish
Pages (from-to)1-14
Number of pages14
JournalIEEE Systems Journal
Issue number99
Publication statusPublished - 30 Dec 2014

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