Analysis of the evolution of peer-to-peer systems
Proceedings of the twenty-first annual symposium on Principles of distributed computing
Efficient topology-aware overlay network
ACM SIGCOMM Computer Communication Review
Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
Peer-to-peer File-sharing over Mobile Ad hoc Networks
PERCOMW '04 Proceedings of the Second IEEE Annual Conference on Pervasive Computing and Communications Workshops
Enhancing Locality in Structured Peer-to-Peer Networks
ICPADS '04 Proceedings of the Parallel and Distributed Systems, Tenth International Conference
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IP Telephony is a potential killer application among the various multimedia applications and services. It is therefore natural to expect support for these services over new network architectures like wireless ad-hoc networks. Despite the proliferation of IP Telephony services in the Internet, the traditional client/server models that have been used are found to be highly inefficient for wireless ad-hoc networks as compared to peer-to-peer (P2P) models. On the other hand, P2P strategies require some tuning to work well in wireless ad-hoc networks. In this paper, we discuss some undesirable situation that may happen if P2P systems are deployed over wireless ad-hoc networks without adaptation. We then define our strategies for positioning Super Nodes in the physical network underlay as well as P2P ID space according to the constraints of these network technologies. We evaluate the efficiency of our approche in reducing the session establishment time and request failure rate as two important criteria for the performance of IP telephony systems