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In this paper, we propose a dynamic route construction method based on measured characteristics of radio propagation in a real environment. Our method first measures characteristics of radio propagation for each link, and determines a communication route from every node to the sink node and its transmission power based on the measured characteristics. While operating the system, our method dynamically...
Triage is a emergency life-saving process to prioritize patients based on severity of their condition in disasters. Triage has been introduced to medical treatment scenes in recent years. In Triage, patients are classified into 4 groups according to their priority based on their condition. Researches of emergency life-saving systems to monitor and collect patients' location and changes of their condition...
Packet classification is an important topic for high speed routers nowadays. There are many packet classification algorithms based on decision tree like Hicuts, Hyper cuts and Hyper split. Because Hicuts and Hyper cuts divides the rule sets by cutting the address space into equal-sized subspaces, their cutting efficiency is not good. Although Hyper split proposed a good end-point-based cutting scheme,...
Nowadays, multi-field packet classification is one of the most important technologies to support various services in next generation routers. In this paper, we propose a segment tree based parallel SRAM-based pipelined architecture called Set Pruning Segment Trees (SPST) for multi-dimensional packet classification. For solving the memory blowup problem, a grouping scheme called Partition by Length...
Low Extra Delay Background Transport (LEDBAT) congestion control algorithm is designed to address the unfairness problem of TCP aggravated by applications that use multiple TCP connections for data transfer. LEDBAT operates under the assumption that the queue delay at the access router of the bottleneck link will be the primary varying contributor to end-to-end one-way delay. However this assumption...
Node placement problems have been long investigated in the optimization field due to numerous applications in facility location, logistics, services, etc. Such problems are attracting again the attention of researchers now from the networking domain, and more especially from Wireless Mesh Networks (WMNs) field. Indeed, the placement of mesh routers nodes appears to be crucial for the performance and...
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