MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Replication strategies in unstructured peer-to-peer networks
Proceedings of the 2002 conference on Applications, technologies, architectures, and protocols for computer communications
End-to-end congestion control schemes: utility functions, random losses and ECN marks
IEEE/ACM Transactions on Networking (TON)
Probabilistic routing in intermittently connected networks
ACM SIGMOBILE Mobile Computing and Communications Review
Modeling epidemic information dissemination on mobile devices with finite buffers
SIGMETRICS '05 Proceedings of the 2005 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Using redundancy to cope with failures in a delay tolerant network
Proceedings of the 2005 conference on Applications, technologies, architectures, and protocols for computer communications
TACO-DTN: a time-aware content-based dissemination system for delay tolerant networks
Proceedings of the 1st international MobiSys workshop on Mobile opportunistic networking
DTN routing as a resource allocation problem
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
A socio-aware overlay for publish/subscribe communication in delay tolerant networks
Proceedings of the 10th ACM Symposium on Modeling, analysis, and simulation of wireless and mobile systems
Efficient routing in intermittently connected mobile networks: the single-copy case
IEEE/ACM Transactions on Networking (TON)
AINAW '08 Proceedings of the 22nd International Conference on Advanced Information Networking and Applications - Workshops
ContentPlace: social-aware data dissemination in opportunistic networks
Proceedings of the 11th international symposium on Modeling, analysis and simulation of wireless and mobile systems
CAR: Context-Aware Adaptive Routing for Delay-Tolerant Mobile Networks
IEEE Transactions on Mobile Computing
The age of impatience: optimal replication schemes for opportunistic networks
Proceedings of the 5th international conference on Emerging networking experiments and technologies
Socially-aware routing for publish-subscribe in delay-tolerant mobile ad hoc networks
IEEE Journal on Selected Areas in Communications
Hi-index | 0.00 |
As the number of mobile users increases, and cell phones become more powerful, delivering multimedia content to them using a centralized infrastructure becomes both expensive and inadequate. Here we study an alternative solution, which leverages local dedicated caches on these devices to opportunistically fulfill other user requests, in a peer-to-peer manner. The problem we study is that of choosing the allocation of content items to these caches, to fulfill the demand of all users in a timely manner.We show that the allocation's efficiency itself is determined by a previously overlooked factor - the impatience of content requesters - which leads to completely different allocations being optimal as content requesters impatience follows different delay-utility functions. Moreover, although no global cache state can be maintained in such opportunistic environment, we show for a homogeneous network that the optimal cache allocation can be attained by simple reactive replication algorithms that use only local knowledge.