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Existing solutions for top-k queries in wireless sensor networks mainly focused on energy efficiency and little attention has been paid to the response time to answer a top-k query as well as the relationship between the response time and the network lifetime. In this paper we address this issue explicitly by studying the top-k query problem in sensor networks with the response time constraint. We...
Peer-to-peer networks are an increasingly popular solution for the distribution of media content to a large number of users, with limited investments for network infrastructures. The distribution of a real time video stream imposes strict performance requirements such as small playback delays and few frame losses. In this paper, we focus on peer-to-peer video streaming systems with tree or forest...
The fat-tree is one of the most widely-used topologies by interconnection network manufacturers. Recently, a deterministic routing algorithm that optimally balances the network traffic in fat--trees was proposed. It can not only achieve almost the same performance than adaptive routing, but also outperforms it for some traffic patterns. Nevertheless, fat-trees require a high number of switches with...
New applications such as real-time packet processing require high-speed string matcher, and the number of strings in pattern store is increasing to tens of thousands, which requires a memory efficient solution. In this paper, a pipelined parallel approach for hardware implementation of Aho-Corasick (AC) algorithm for multiple strings matching called P2-AC is presented. P2-AC organizes the transition...
This paper introduces a new approach to build application layer multicast overlay - multiple shared trees. Multiple shared trees' approach makes tradeoffs between traditional source-based trees and single-shared tree, and between transmission efficiency and protocol overheads. Based on this, we propose two protocols to build ALM overlay among end users and media-forwarding-gateways respectively. The...
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