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Tsinghua Science and Technology

Issue 3 • Date June 2013

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Displaying Results 1 - 13 of 13
  • Contents

    Publication Year: 2013 , Page(s): 1
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    Freely Available from IEEE
  • Cooperative sensor anomaly detection using global information

    Publication Year: 2013 , Page(s): 209 - 219
    Cited by:  Papers (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1764 KB)  

    Sensor networks are deployed in many application areas nowadays ranging from environment monitoring, industrial monitoring, and agriculture monitoring to military battlefield sensing. The accuracy of sensor readings is without a doubt one of the most important measures to evaluate the quality of a sensor and its network. Therefore, this work is motivated to propose approaches that can detect and r... View full abstract»

    Open Access
  • Traffic distribution of circular sailing routing in dense multihop wireless networks

    Publication Year: 2013 , Page(s): 220 - 229
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (2195 KB)  

    Shortest path routing protocol intends to minimize the total delay between every pair of destination node and source node. However, it is also well-known that shortest path routing suffers from uneven distribution of traffic load, especially in dense wireless networks. Recently, several new routing protocols are proposed in order to balance traffic load among nodes in a network. One of them is Cir... View full abstract»

    Open Access
  • DAWN: A density adaptive routing for deadline-based data collection in vehicular delay tolerant networks

    Publication Year: 2013 , Page(s): 230 - 241
    Cited by:  Papers (2)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (2361 KB)  

    Vehicular Delay Tolerant Networks (DTN) use moving vehicles to sample and relay sensory data for urban areas, making it a promising low-cost solution for the urban sensing and infotainment applications. However, routing in the DTN in real vehicle fleet is a great challenge due to uneven and fluctuant node density caused by vehicle mobility patterns. Moreover, the high vehicle density in urban area... View full abstract»

    Open Access
  • Self-coexistence among cognitive radio networks using risk-motivated channel selection based deference structure

    Publication Year: 2013 , Page(s): 242 - 249
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (392 KB)  

    Among cognitive radio networks there is a persistent trend of competition to acquire under-utilized and idle channels for data transmission. The competition for spectrum resources often results in the misuse of the spectrum resources as networks experience contention in attempt to access unoccupied spectrum bands. The competitive scenario causes cognitive radio networks to incur a huge amount of l... View full abstract»

    Open Access
  • Optimization of the deployment of temperature nodes based on linear programing in the internet of things

    Publication Year: 2013 , Page(s): 250 - 258
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (748 KB)  

    The Internet of Things emphasizes the concept of objects connected with each other, which includes all kinds of wireless sensor networks. An important issue is to reduce the energy consumption in the sensor networks since sensor nodes always have energy constraints. Deployment of thousands of wireless sensors in an appropriate pattern will simultaneously satisfy the application requirements and re... View full abstract»

    Open Access
  • Erasure coding for cloud storage systems: A survey

    Publication Year: 2013 , Page(s): 259 - 272
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (4131 KB)  

    In the current era of cloud computing, data stored in the cloud is being generated at a tremendous speed, and thus the cloud storage system has become one of the key components in cloud computing. By storing a substantial amount of data in commodity disks inside the data center that hosts the cloud, the cloud storage system must consider one question very carefully: how do we store data reliably w... View full abstract»

    Open Access
  • On meeting deadlines in datacenter networks

    Publication Year: 2013 , Page(s): 273 - 285
    Cited by:  Papers (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (4131 KB)  

    Datacenters have become increasingly important to host a diverse range of cloud applications with mixed workloads. Traditional applications hosted by datacenters are throughput-oriented without delay requirements, but newer generations of cloud applications, such as web search, recommendations, and social networking, typically employ a tree-based Partition-Aggregate structure, which may incur burs... View full abstract»

    Open Access
  • Coarse-grained cloud synchronization mechanism design may lead to severe traffic overuse

    Publication Year: 2013 , Page(s): 286 - 297
    Cited by:  Papers (2)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1366 KB)  

    In recent years, cloud sync(hronization) services such as GoogleDrive and Dropbox have provided Internet users with convenient and reliable data storing/sharing functionality. The cloud synchronization mechanism (in particular, how to deliver the user-side data updates to the cloud) plays a critical role in cloud sync services because it greatly affects the cloud operation cost (in terms of sync t... View full abstract»

    Open Access
  • Performance evaluation and dynamic optimization of speed scaling on web servers in cloud computing

    Publication Year: 2013 , Page(s): 298 - 307
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1577 KB)  

    The energy consumption in large-scale data centers is attracting more and more attention today with the increasing data center energy costs making the enhanced performance very expensive. This is becoming a bottleneck to further developments in terms of both scale and performance of cloud computing. Thus, the reduction of the energy consumption by data centers is becoming a key research topic in g... View full abstract»

    Open Access
  • QoS-aware virtual machine scheduling for video streaming services in multi-cloud

    Publication Year: 2013 , Page(s): 308 - 317
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1823 KB)  

    Video streaming services are trending to be deployed on cloud. Cloud computing offers better stability and lower price than traditional IT facilities. Huge storage capacity is essential for video streaming service. More and more cloud providers appear so there are increasing cloud platforms to choose. A better choice is to use more than one data center, which is called multi-cloud. In this paper a... View full abstract»

    Open Access
  • TST: Threshold based similarity transitivity method in collaborative filtering with cloud computing

    Publication Year: 2013 , Page(s): 318 - 327
    Cited by:  Papers (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1265 KB)  

    Collaborative filtering solves information overload problem by presenting personalized content to individual users based on their interests, which has been extensively applied in real-world recommender systems. As a class of simple but efficient collaborative filtering method, similarity based approaches make predictions by finding users with similar taste or items that have been similarly chosen.... View full abstract»

    Open Access
  • Call for papers special issue of Tsinghua Science and Technology on bioinformatics and computational biology

    Publication Year: 2013 , Page(s): 328
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    Freely Available from IEEE

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Tsinghua Science and Technology (Tsinghua Sci Technol) aims to highlight scientific achievements in computer science, electronic engineering, and other IT fields. Contributions all over the world are welcome.

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