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Network traffic classification has attracted more and more attentions from both academia and industry. It has been widely adopted in network management and security, such as QoS measurements. Due to rapid emergence of new applications in current network environment, it is impractical for a classification system to obtain full knowledge of a network environment. A big challenge to the identification...
Nowadays, the rapid development of digital TV media applications proposes higher requirements on the performance of the media servers. This paper discusses such a media server based on multi-core network processors. These servers are deployed at the edge of the Internet to provide services independently, catering to the characteristics of digital TV. However, it is crucial to find an appropriate storage...
Low-power wireless data acquisition is an important technical means to achieve automation and unmanned surveillance of ultrasonic measurement systeme. Using wireless communication technology for ultrasonic data transfer, an ultrasonic data transfer method based on Zigbee technology is presented. The entire system hardware circuits and principle are discussed. The system consists of ultrasonic sensor...
Along with the development and application of the high speed network, in order to reduce the cost of data copy and context switch, the paper presents an improved method of zero-copy data transmission that is suitable for the high speed network environment on Linux and UNIX platforms. The method can reduce the number of data copy and context switch between kernel and user mode. It is tested by transmitting...
As the technology of mobile sensors advances, mobility control becomes a viable option that can be utilized to minimize energy consumption in wireless sensor networks (WSNs). A mobility control protocol re-deploys mobile sensors to optimal positions to minimize energy consumption for communication. We identify a unique privacy issue in mobility control protocols that discloses the physical location...
In this paper we propose a scalable admission control scheme for the QoS sensitivity traffic in core-stateless networks. In our scheme, the ingress routers perform admissibility test in a fully distributed and parallel fashion for requests by dint of our bandwidth dividing based virtual link mechanism. Then, we introduce a novel two phase token passing mechanism to adaptively optimize the proportion...
With the development of technology, wireless sensor networks (WSNs) performing sensing and communication tasks will be widely deployed in the near future because they greatly extend our ability to monitor and control the physical environment and improve the accuracy of information gathering. Since the sensors are usually deployed in hostile environments and cannot get recharged frequently, the power...
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