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The past few years have witnessed revolutionary advances in network technology. Along with new techniques such as SDN come lots of new network security challenges. Conventional network security mechanisms are incompetent to overcome these challenges, since they are built on a static network configuration that facilitates attackers in finding the weaknesses of a network. In this article, we conceive...
Multicast, transmitting packets from one source to a group of destinations, is a popular service in Internet and now in the datacenter network. However, a unified multicast algorithm cannot satisfy the diverse performance requirements from different users. Hence customized multicast services are proposed in software defined networks (SDN) in this paper. We tackle a few associated technical challenges,...
In order to improve service execution in Clouds, the management of Cloud Infrastructure has to take measures to adhere to Service Level Agreements and Business Level Objectives, from the application layer through to how services are supported at the lowest hardware levels. In this paper a risk model methodology and holistic management approach is developed specific to the operation of the Cloud Infrastructure...
Traffic grooming technique is one of the important candidates to save energy for networks. In order to minimize the energy consumption using Integer Linear Program (ILP) or Mixed Integer Linear Program (MILP), the assumption has to be made that all the connection requests are accepted in the IP over WDM network. However, a connection request may be blocked in a real network. In this paper, a bi-objective...
The principles of risk management have been introduced in grid computing to help document and anticipate certain risks and manage them to ensure job executions are successful. Clouds are more complex environments with further concerns like risk, trust, eco-efficiency, green, security or cost. In this paper we present ongoing research work to analyze and address the risk factor in clouds with the aim...
In the monitoring system,the existing resource of Ethernet is used to remotely monitor power network parameters. A practical design of embedded Web server for power network monitoring is introduced, which applies high speed MCU (SX52BD) to conveniently link to Ethernet. Adopting Ethernet interface control mode, the remote network monitoring of power network is realized under Windows.
IP cameras are key devices for a video surveillance system. This paper introduces a cost effective, power efficient and low profile IP camera. The camera consists of a video preprocessing unit, an H.264 encoder, and an embedded streaming server. The video preprocessing unit is used for video data acquisition and format conversion; the H.264 encoder compresses the preprocessed data with H.264 baseline...
TCP combined with active queue management algorithm is the primary solution of the congestion control problem of IP network. Red and blue are the famous AQM algorithms but neither of them performs well when traffic load is heavy and when the traffic load changes. This paper proposes a new traffic load adaptive AQM algorithm named TLA. The objective of TLA is to stabilize the queue size m a wide variety...
The DiffServ (differentiated services) architecture has recently become the preferred service model for addressing QoS issues in IP networks due to its simplicity and scalability. In the DiffServ domain, the core routers use RIO algorithm, which performs different packet dropping schemes when congestion occurs. But the RIO algorithm cannot stabilize the queue size and therefore, leads to unpredictable...
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