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More and more VoIP applications have emerged with the development of network and multimedia coding techniques. Their traffic identification is meaningful to for network management and application optimization. In this paper, a new traffic identification scheme, which combines traffic flow statistic analysis with host behavior estimation, is proposed to identify the VoIP traffic at transport layer...
The IEEE 802.16/WiMAX mesh network, which is dynamically self-organized and self-configured, is a promising solution for wireless broadband access in metropolitan scale with a cost-effective deployment. As in most wireless multi-hop networks, traffic scheduler in MAC is one of most important factor for the performance of 802.16 mesh networks. Two scheduling modes, centralized scheduling and distributed...
With the success of P2P file sharing application and the development of multimedia coding technique, IPTV, a new emerging P2P application, arises on the Internet for streaming content. In order to gain insights into P2P IPTV systems, we have undertaken an in-depth measurement study of one of the most popular IPTV systems, namely UUSee, compared with BT-like file sharing application. The measurement...
Traffic engineering (TE) is an important mechanism to maximize network resources and provide quality of service (QoS) for different Internet applications. Multi protocol label switching (MPLS) enables TE in IP networks. In this paper, we present a new MPLS framework - an on-line routing mechanism based on the off-line optimal computing to guarantee QoS for different types of flow and at the same time,...
Delay tolerant network (DTN) is a network which implies asynchronous communication and does not require an end-to-end path at any point in time. Its main characteristic is the links between nodes are volatile and may break down for a long time at any time, so it can't be assumed that a path exists between the source node and the destination node. The current studies on DTN mainly use theoretical analysis,...
Bluetooth which operates in the 2.4 GHz ISM band provides short range, low cost, low power pico-cellular wireless connectivity. It intends to become the wireless personal area network standard itself. The Bluetooth specification proposes a round robin scheduler as possible solution for scheduling slaves in a Bluetooth piconet. However, this basic scheme performs badly under asymmetric traffic conditions...
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