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Ditto -A System for Opportunistic Caching in Multi-hop Wireless Networks
 

Summary: Ditto - A System for Opportunistic Caching in
Multi-hop Wireless Networks
Fahad R. Dogar, Amar Phanishayee, Himabindu Pucha, Olatunji Ruwase, David G. Andersen
Carnegie Mellon University
{fdogar, amarp, hpucha, oor, dga}@cs.cmu.edu
ABSTRACT
This paper presents the design, implementation, and evalu-
ation of Ditto, a system that opportunistically caches over-
heard data to improve subsequent transfer throughput in
wireless mesh networks. While mesh networks have been
proposed as a way to provide cheap, easily deployable Inter-
net access, they must maintain high transfer throughput to
be able to compete with other last-mile technologies. Un-
fortunately, doing so is difficult because multi-hop wireless
transmissions interfere with each other, reducing the avail-
able capacity on the network. This problem is particularly
severe in common gateway-based scenarios in which nearly
all transmissions go through one or a few gateways from the
mesh network to the Internet.
Ditto exploits on-path as well as opportunistic caching

  

Source: Andersen, Dave - School of Computer Science, Carnegie Mellon University
Curtmola, Reza - Department of Computer Science, New Jersey Institute of Technology
Reddy, Raj - School of Computer Science, Carnegie Mellon University

 

Collections: Computer Technologies and Information Sciences