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In an ad-hoc network, packet flow management is a major challenge due to rapid change of network structure. In heterogeneous queue monitoring scenario, some protocol dispatch packets according to their priority. As a result of these queue monitoring policies, packets that have lower priority leads to starvation even if they have travelled a long hop distance, hence the packet is dropped. Considering...
In an RFID system, a reader has to identify tags reliably. When the tags have mobility, the reader should identify quickly within a certain limited time. Existing RFID anti-collision protocols do not consider the movement of tags, so tag identification failure caused by the tag movement can not be prevented, resulting in decreased identification rate. In this paper, we present a system model for a...
Core networks of the future will have a translucent and eventually transparent optical structure. Ultra-high-speed end-to-end connectivity with high quality of service and high reliability will be realized through the exploitation of optimized protocols and lightpath routing algorithms. These algorithms will complement a flexible control and management plane integrated in the proposed solution. Physical...
IEEE P1900.4 is an emerging standard for optimized radio resource utilization where cognitive radio technologies are used for efficient spectrum utilization. In this paper, we design and implement a cognitive wireless network system based on open documents of IEEE P1900.4, and evaluate its performance using UDP streaming and HTTP download. Our experiments show interesting results that total network...
As digital resources increasingly growing and the economic benefit of digital intellectual property rights being increasingly important, people has been increasingly emphasis on information security issues brought by the data remnants in storage devices. They try their best to prevent the potential risks. In this paper, we survey comprehensively related technologies, standards and trends of erasure,...
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