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We provide a cloud-based journey planner for public transport built upon an efficient core routing engine that updates efficiently timetable information in case of delays. We describe our mobile application along with a service that allows users to assess the suggested journeys offered by the application, built on top of an IoT/FIRE+ infrastructure. Our journey planner contributes to the establishment...
In the large-scale Wireless Metropolitan Area Network (WMAN) consisting of many wireless Access Points (APs),choosing the appropriate position to place cloudlet is very important for reducing the user's access delay. For service provider, it isalways very costly to deployment cloudlets. How many cloudletsshould be placed in a WMAN and how much resource eachcloudlet should have is very important for...
Skip Graph, a member of the distributed hash table (DHT) family, has several benefits as an underlying structure in peer-to-peer (P2P) storage systems. In such systems, replication plays a key role on the system's performance. The traditional decentralized replication algorithms do not consider the locations of Skip Graph nodes in the network. Negligence of node locations in the placement of the replicas...
Cloud computing has become a choice over traditional computing environments in terms of virtualization. As cloud services continue to grow rapidly, the need for more efficient utilization of resources and better optimized distribution of work-load emerges. In this paper an adaptive algorithm based on Map reduce technique is proposed which produces optimal solution from three perspectives i.e. Infrastructure...
In many radio frequency identification (RFID) applications, a RFID reader repeatedly identifies the tags in its scope. An anti-collision algorithm with blocking mechanism lets the staying tags and arriving tags reply in different time periods and the collisions between the staying and arriving tags are prevented. However, in the existing blocking algorithms, the reader can only identify two staying...
This paper is concerned with congestion control for dynamic TCP/AQM networks with random delays. A robust congestion control algorithm is presented based on the H∞ approach, and the system performance is analyzed via linear matrix inequalities (LMIs). Simulation results illustrate the effectiveness of the proposed algorithm.
The up-and-coming cloud computing model endeavors to deal with the explosive growth of web-connected devices and manage colossal amount of data and patron demands. Thereby, giving rise to the query whether this escalating load can be managed by this cloud model or not. Cloud workload management is one of the primary challenges which must be addressed in the cloud computing paradigm. Instantaneous...
This paper studies the problem of the real-time communication in the on-line monitoring system, which achieves the on-line monitoring of B / S mode through the ActiveX controls and network programming technology based on the TCP / IP protocol. This paper proposes an improved congestion control algorithm grounded on the one-way delay (CCAOD), using the value and the change trendency of the one-way...
The rapid developments of communication and computer hardware technology in the last few years have given rise to a strong research interest in Concurrent Multi-Path (CMP) technology. Based on the comparison with conventional single path forward and random CMP forward, a novel Single-hop Delay Probe (SDP) algorithm for CMP forward in multi-homed host is proposed. NS2 simulations prove that SDP algorithm...
The emergence and dissipation of queue before saturated intersection in urban traffic network is analyzed. A dynamic variational inequality assignment model in saturated urban traffic network is proposed based on a boundary equilibrium concept. This concept is used to deal the saturated signalized intersections as bottlenecks based on saturated flow and green split to simplify the calculation of queuing...
We investigate the problem of finding minimum-distortion policies for streaming delay-sensitive but distortion-tolerant data. We consider cross-layer approaches which exploit the coupling between presentation and transport layers. We make the natural assumption that the distortion function is convex and decreasing. We focus on a single source-destination pair and analytically find the optimum transmission...
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