Chordella - A Hierarchical Peer-to-Peer Overlay Implementation for Heterogeneous, Mobile Environments

This paper deals with Chordella, a peer-to-peer system that is particularly designed for heterogeneous environments such as in wireless networks. We use a pool of standard personal computers distributed over the Internet which act as reliable nodes and form the backbone of the network as superpeers. The mobile nodes are represented by mobile phones running a lightweight implementation of our system able to use the superpeers as proxies. The demo shows the effectiveness of the approach with a mobile picture sharing application benefiting from several improvements such as load balancing and optimal operation point selection algorithms.