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This paper studies the problem of scheduling in single-hop wireless networks with real-time traffic, where every packet arrival has an associated deadline and a minimum fraction of packets must be transmitted before the end of the deadline. Using optimization and stochastic network theory we study the problem of scheduling to meet quality of service (QoS) requirements under heterogeneous delay constraints...
In this paper, we investigate an important issue for real-time multimedia over multi-hop ad-hoc networks on different layers. Such application requires receiver playback buffers to smooth network delay variation and reconstruct the periodic nature of the transmitted packets. Packets arriving after their schedule deadline are considered late and are not played out. This requires that the network is...
We propose and discuss an augmented DiffServ architecture for ad hoc networks. It utilizes the concept of shadow classes and monitoring for admission control. Each DiffServ class has an associated shadow class with a higher drop probability, but the same scheduling properties. A new flow must reside in its shadow class before it is admitted. The resulting QoS is monitored, and the new flow is not...
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