Browse by Author "Nahrstedt, Klara"

  • Liang, Jin; Nahrstedt, Klara (2005-05)
    Many Peer-to-peer (P2P) applications such as media broadcasting and content distribution require a high performance overlay structure in order to deliver satis- fying quality of service (QoS). Previous approaches to building ...

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  • Yang, Zhenyu; Cui, Yi; Anwar, Zahid; Bocchino, Robert L., Jr.; Kiyanclar, Nadir; Nahrstedt, Klara; Campbell, Roy H.; Yurcik, William (2005-08)
    Tele-immersive system can improve the productivity and aid communication by allowing distributed parties to exchange information via a shared immersive experience. The TEEVE research project at the University of Illinois ...

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  • Xiao, Li; Nahrstedt, Klara; Wang, Jun (2005-07)
    A reliable routing control plane in Internal Border Gateway Protocol (IBGP) is very important for achieving dependable Internet data communication. However, the reliability modeling of IBGP and the design of reliable IBGP ...

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  • Fesehaye, Debessay; Ahmed, Shameem; Pongthawornkamol, Thadpong; Nahrstedt, Klara; Wang, Guijun (2011-03-23)
    The need for deadline-sensitive messaging systems is growing fast with the growth in the number of mobile and static devices communicating with each other. With many such devices from different locations exchanging ...

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  • Sridhar, Anjali; Nahrstedt, Klara; Vu,Long (2012)

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  • Fesehaye, Debessay; Malik, Rahul; Nahrstedt, Klara (2010-03-16)
    Large scale distributed systems such as cloud computing applications are becoming very common. These applications come with increasing challenges on how to transfer and where to store and compute data. The most prevalent ...

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  • Tabassum, Rehana; Nahrstedt, Klara; Rogers, Edmond; Rawson, Michael (2012)
    In smart grid, the scale of pole devices that monitor the health of power lines is already large, and with the upgrade of the smart grid, the number of these resource-constrained devices is further increasing. These devices ...

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  • Arefin, Md Ahsan; Khurshid, Ahmed; Caesar, Matthew; Nahrstedt, Klara (IEEE, 2011-08-11)
    Understanding and troubleshooting wide area networks (such as military backbone networks and ISP networks) are challenging tasks due to their large, distributed, and highly dynamic nature. Building a system that can record ...

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  • He, Wenbo; Huang, Ying; Nahrstedt, Klara; Lee, Whay C. (2006-06)
    In this paper, we study challenges and possible solutions to cryptographic key management in mission-critical networks. Existing symmetric key cryptography mechanisms do not scale well when supporting end-to-end secure and ...

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  • He, Wenbo; Nguyen, Hoang; Liu, Xue; Nahrstedt, Klara; Abdelzaher, Tarek F. (2006-11)
    Data aggregation is an efficient mechanism to collect statistics of data in wireless sensor networks. However, the shared-medium nature of communication facilitates eavesdropping and packet tampering/injection by adversaries. ...

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  • Yang, Zhenyu; Nahrstedt, Klara; Cui, Yi; Yu, Bin; Liang, Jin; Jung, Sang-Hack; Bajscy, Ruxena (2005-08)
    Tele-immersive 3D multi-camera room environments are starting to emerge and with them new challenging research questions. One important question is how to organize the large amount of visual data, being captured, processed, ...

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  • Conner, William G.; Nahrstedt, Klara (2007-03)
    We present a flexible framework for throttling attackers in peer-to-peer media streaming systems. In such systems, selfish nodes (e.g., free riders) and malicious nodes (e.g., DoS attackers) can overwhelm the system by ...

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  • Wu, Wanmin; Yang, Zhenyu; Gupta, Indranil; Nahrstedt, Klara (2008-03)
    3D tele-immersion (3DTI) has recently emerged as a new way of video- mediated collaboration across the Internet. Unlike conventional 2D video-conferencing systems, it can immerse remote users into a shared 3D virtual space ...

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  • Iyer, Ravishankar; Hwu, Wen-mei; Nahrstedt, Klara; Sanders, William; Kalbarczyk, Zbigniew (2007)

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  • Xiao, Li; He, Guanghui; Nahrstedt, Klara (2004-10)
    The reliability and robustness of the Border Gateway Protocol (BGP) play very important roles in achieving highly stable and prompt Internet data communication. The present BGP uses TCP/IP to exchange routing control ...

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  • Vu, Long; Gupta, Indranil; Nahrstedt, Klara; Liang, Jin (2008-09)
    This paper presents results from our measurement and modeling efforts on the large-scale peer- to-peer (p2p) overlay graphs spanned by the PPLive system, the most popular and largest p2p IPTV (Internet Protocol Television) ...

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  • Vu, Long; Gupta, Indranil; Nahrstedt, Klara; Liang, Jin (2008-09)
    This paper presents results from our measurement and modeling efforts on the large-scale peer- to-peer (p2p) overlay graphs spanned by the PPLive system, the most popular and largest p2p IPTV (Internet Protocol Television) ...

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    application/pdfPDF (437Kb)
  • Huang, Zixia; Arefin, Md Ahsan; Agarwal, Pooja; Nahrstedt, Klara; Wu, Wanmin (2011-12-12)
    Both comparative category rating (CCR) and degradation category rating (DCR) methods have been heavily employed in the subjective evaluations of media systems. The resulting metrics, comparative mean-opinion-score (CMOS) ...

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  • Conner, William G.; Hwang, Seung-won; Nahrstedt, Klara (2006-12)
    As more and more data from distributed data sources becomes accessible, supporting queries over peer-to-peer networks of such data sources becomes a more convincing application scenario. In such an application scenario, a ...

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  • Conner, William G.; Hwang, Seung-won; Nahrstedt, Klara (2007-05)
    Supporting queries over dispersed data stored in large-scale distributed systems, such as peer-to-peer networks, naturally calls for ranked retrieval in order to effectively focus on the most relevant (i.e., top-k) results. ...

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