Efficient Topic-Based File Sharing in Hybrid Wireless Networks

File sharing is an essential daily task. This includes for instance the sharing of pictures, music, and learning material. Common file sharing applications, however, are not suitable for mobile networks as the induced network load is too high. In this paper a prototypically implemented topic-based file sharing application for hybrid wireless networks is presented and evaluated. For the evaluation of the application, two different information dissemination mechanisms for mobile networks are introduced and compared against each other. The first one is based on a peer-to-peer (P2P) communication approach between local one-hop neighbors. The second one employs a clustering algorithm for mobile networks in order to reduce the produced network traffic.