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Recently, the problems of evaluating performances of switches and routers have been formulated as online problems, and a great amount of results have been presented. In this paper, we focus on managing outgoing packets (called egress traffic) on switches that support Quality of Service (QoS), and analyze the performance of one of the most fundamental scheduling policies Priority Queuing (PQ) using...
We have designed and implemented an on-demand home power management system for saving electric power consumption reliably and systematically without affecting our Quality of Life. The system is based on protocol hierarchy composed of the request/response layer, the path control layer, and the physical layer. Based on the layered protocol architecture, it becomes possible to treat power allocation,...
Unauthorized use of digital contents has become a problem in recent years. In particular, spread of illegally copied software is getting serious. Conventional approaches have drawbacks that they hamper the convenience of legitimate users. In this study, we bring up another idea "identifying the person who illegally distributed a fraud software code" so as not to limit the rights of innocent...
An on-demand power supply network is proposed in i-Energy project as a method to achieve the goal of powersaving in home. In the on-demand power supply network, power requests of devices are classified by priority of Quality of Life. When each device requires power, the device sends a power request message which contains required power and the priority to the network. When the network accepts a request...
We focus on Power over Ethernet (PoE), which is the technology to carry power on LAN cables, and extend LLDP (Link Layer Discovery Protocol), in which power requests are sent in PoE, so that power is supplied on demand. In on-Demand Power Supply Networks, Powered Devices (PD) are classified by their priority. When a device requires power, it sends a power request message, in which required power and...
In an ideal ubiquitous network, everyone can access the Internet when some connectivity exists there. A network administrator is supposed to provide a connection to public visitors securely. In this paper, we propose a secure public wireless Internet service model using Host identity Protocol (HIP). Services based on the model allow everyone to provide a connection. We give some consideration to its...
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