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Displaying 1-20 out of 20 total
Unregister Attacks in SIP
Found in: IEEE Workshop on Secure Network Protocols
By Anat Bremler-Barr, Ronit Halachmi-Bekel, Jussi Kangasharju
Issue Date:November 2006
pp. 32-37
In this paper we present the unregister attack, a new kind of a denial of service attack on SIP servers. In this attack, the attacker sends a spoofed
 
Realizing the Internet of Nano Things: Challenges, Solutions, and Applications
Found in: Computer
By Sasitharan Balasubramaniam,Jussi Kangasharju
Issue Date:February 2013
pp. 62-68
Embedding nanosensors in the environment would add a new dimension to the Internet of Things, but realizing the IoNT vision will require developing new communication paradigms and overcoming various technical obstacles.
 
Experiences with MundoCore
Found in: Pervasive Computing and Communications Workshops, IEEE International Conference on
By Erwin Aitenbichler, Jussi Kangasharju, Max Mühlhäuser
Issue Date:March 2005
pp. 168-172
Pervasive Computing environments require new communication and programming paradigms. In this paper we present our experiences from the implementation of MundoCore, a pervasive communication middleware. MundoCore?s service discovery allows us to discover a...
 
Surveying Wikipedia activity: Collaboration, commercialism, and culture
Found in: Information Networking, International Conference on
By Ossi Karkulahti,Jussi Kangasharju
Issue Date:February 2012
pp. 384-389
User generated content has grown drastically on the Internet over the last years. In this paper, we take a look at Wikipedia and compare Wikipedia editing activity both against commercial content producers as well as across different cultures. Our results ...
 
Floating content: Information sharing in urban areas
Found in: Pervasive Computing and Communications, IEEE International Conference on
By Jorg Ott, Esa Hyytia, Pasi Lassila, Tobias Vaegs, Jussi Kangasharju
Issue Date:March 2011
pp. 136-146
Content sharing using personal web pages, blogs, or online social networks is a common means for people to maintain contact with their friends, colleagues, and acquaintances. While such means are essential to overcome distances, using infrastructure servic...
 
Opportunistic Data Dissemination Using Real-World User Mobility Traces
Found in: Advanced Information Networking and Applications Workshops, International Conference on
By Andreas Heinemann, Jussi Kangasharju, Max Muehlhaeuser
Issue Date:March 2008
pp. 1715-1720
Opportunistic communication allows humans equipped with mobile devices to exchange information via a wireless link whenever they are nearby. This work examines the performance of a profile-based data dissemination scheme. We use a 2-step simulation approac...
 
Secure and Resilient Peer-to-Peer E-Mail: Design and Implementation
Found in: Peer-to-Peer Computing, IEEE International Conference on
By Jussi Kangasharju, Keith W. Ross, David A. Turner
Issue Date:September 2003
pp. 184
E-mail is a mission-critical communication function for virtually all institutions. Modern e-mail employs a server-centric design, in which the user is critically dependent on her mail server. In this paper we present a peer-to-peer (P2P) email architectur...
 
Distributing Layered Encoded Video through Caches
Found in: IEEE Transactions on Computers
By Jussi Kangasharju, Felix Hartanto, Martin Reisslein, Keith W. Ross
Issue Date:June 2002
pp. 622-636
<p><b>Abstract</b>—The efficient distribution of stored information has become a major concern in the Internet which has increasingly become a vehicle for the transport of stored video. Because of the highly heterogeneous access to the In...
 
Incentives for Opportunistic Networks
Found in: Advanced Information Networking and Applications Workshops, International Conference on
By Jussi Kangasharju, Andreas Heinemann
Issue Date:March 2008
pp. 1684-1689
Ad hoc networks and peer-to-peer systems typically require many users to participate, to leverage the full benefits of the system. In this paper we consider incentives for opportunistic networks. As an example, consider an electronic coupon system, where p...
 
Seeker-assisted information search in mobile clouds
Found in: Proceedings of the second ACM SIGCOMM workshop on Mobile cloud computing (MCC '13)
By Esa Hyytiä, Jörg Ott, Jussi Kangasharju, Suzan Bayhan
Issue Date:August 2013
pp. 9-14
The increase in the size of mobile cloud as well as the volume of information necessitates efficient search mechanisms for finding the searched information or the target node. In this paper, we focus on search mechanisms to retrieve information from within...
     
Cooperation policies for efficient in-network caching
Found in: Proceedings of the ACM SIGCOMM 2013 conference on SIGCOMM (SIGCOMM '13)
By Jussi Kangasharju, Liang Wang, Suzan Bayhan
Issue Date:August 2013
pp. 533-534
Caching is a key component of information-centric networking, but most of the work in the area focuses on simple en-route caching with limited cooperation between the caches. In this paper we model cache cooperation under a game theoretical framework and s...
     
Harvesting heat in an urban greenhouse
Found in: Proceedings of the first workshop on Urban networking (UrbaNe '12)
By Jussi Kangasharju, Lassi Remes, Mikko Pervilä
Issue Date:December 2012
pp. 7-12
This article describes the first eight months of operation of a prototype rooftop greenhouse located in Helsinki, Finland. The greenhouse is heated by exhaust heat harvested from a rack of computer servers, while the servers are cooled by unconditioned out...
     
Fs-PGBR: a scalable and delay sensitive cloud routing protocol
Found in: Proceedings of the ACM SIGCOMM 2012 conference on Applications, technologies, architectures, and protocols for computer communication (SIGCOMM '12)
By Julien Mineraud, Jussi Kangasharju, Sasitharan Balasubramaniam, William Donnelly
Issue Date:August 2012
pp. 301-302
This paper proposes an improved version of a fully distributed routing protocol, that is applicable for cloud computing infrastructure. Simulation results shows the protocol is ideal for discovering cloud services in a scalable manner with minimum latency.
     
Bubblestorm: resilient, probabilistic, and exhaustive peer-to-peer search
Found in: Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications (SIGCOMM '07)
By Alejandro P. Buchmann, Christof Leng, Jussi Kangasharju, Wesley W. Terpstra
Issue Date:August 2007
pp. 652-652
Peer-to-peer systems promise inexpensive scalability, adaptability, and robustness. Thus, they are an attractive platform for file sharing, distributed wikis, and search engines. These applications often store weakly structured data, requiring sophisticate...
     
Bringing order to BGP: decreasing time and message complexity
Found in: Proceedings of the twenty-sixth annual ACM symposium on Principles of distributed computing (PODC '07)
By Anat Bremler-Barr, Jussi Kangasharju, Nir Chen, Osnat Mokryn, Yuval Shavitt
Issue Date:August 2007
pp. 368-369
A fundamental network design problem is the one of SteinerNetwork Design. The goal is to design a network which is able to support a unit flow for each commodity, at a time, between its source-sink pair. When the flows are unsplittable, this corresponds to...
     
Engineering intuitive and self-explanatory smart products
Found in: Proceedings of the 2007 ACM symposium on Applied computing (SAC '07)
By Erwin Aitenbichler, Fernando Lyardet, Gerhard Austaller, Jussi Kangasharju, Max Muhlhauser
Issue Date:March 2007
pp. 1632-1637
One of the main challenges in ubiquitous computing is making users interact with computing appliances in an easy and natural manner. In this paper we discuss how to turn ordinary devices into Smart Products that are more intuitive to use and are self-expla...
     
Incentives for electronic coupon systems
Found in: Proceedings of the 1st international workshop on Decentralized resource sharing in mobile computing and networking (MobiShare '06)
By Andreas Heinemann, Jussi Kangasharju
Issue Date:July 2006
pp. 60-62
Ad hoc networks and peer-to-peer systems typically require many users to participate, in order to leverage the full benefits of the system. In this paper we examine an electronic coupon system, where providers send out coupons, which are passed from user t...
     
Evaluation of network impact of content distribution mechanisms
Found in: Proceedings of the 1st international conference on Scalable information systems (InfoScale '06)
By Jussi Kangasharju, Shibsankar Das
Issue Date:May 2006
pp. 35-es
Efficient large-scale content distribution continues to be an important problem, due to the increasing popularity of multimedia content and wide-spread use of peer-to-peer file sharing. In this paper, we evaluate the impact of different content distributio...
     
Adaptive content management in structured P2P communities
Found in: Proceedings of the 1st international conference on Scalable information systems (InfoScale '06)
By David A. Turner, Jussi Kangasharju, Keith W. Ross
Issue Date:May 2006
pp. 24-es
A fundamental paradigm in P2P is that of a large community of intermittently-connected nodes that cooperate to share files. Because nodes are intermittently connected, the P2P community must replicate and replace files as a function of their popularity to ...
     
Mocha: a quality adaptive multimedia proxy cache for internet streaming
Found in: Proceedings of the 11th international workshop on Network and operating systems support for digital audio and video (NOSSDAV '01)
By Jussi Kangasharju, Reza Rejaie
Issue Date:January 2001
pp. 3-10
Multimedia proxy caching is a client-oriented solution for large-scale delivery of high quality streams over heterogeneous networks such as the Internet. Existing solutions for multimedia proxy caching are unable to adjust quality of cached streams. Thus ...
     
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