Delay Tolerant Networks (DTNs) are a class of networks characterized by lack of guaranteed connectivity, typically low frequency of encounters between DTN nodes and long propagatio...
Abstract. In unstructured peer-to-peer networks, as in real life, a good neighbourhood is not only crucial for a peaceful sleep, but also for an exchange of important gossips and f...
Ivan Martinovic, Christof Leng, Frank A. Zdarsky, ...
Peer-to-peer grids aim to build computational grids encompassing thousands of sites. To achieve this scale, such systems cannot rely on trust or off-line negotiations among partic...
Miranda Mowbray, Francisco Vilar Brasileiro, Nazar...
Current P2P systems employ tit-for-tat strategies, where peers only upload when they are simultaneously downloading, to avoid free riding. We derive optimal tit-for-tat strategies...
Dimitri do B. DeFigueiredo, Balaji Venkatachalam, ...
Lack of cooperation (free riding) is one of the key problems that confronts today’s P2P systems. What makes this problem particularly difficult is the unique set of challenges ...
Michal Feldman, Kevin Lai, Ion Stoica, John Chuang