This book constitutes the refereed proceedings of the 3rd International Conference on Computer Network and Mobile Computing held in Zhangjiajie, China, in August 2005.

The 133 revised full papers and 2 keynote articles presented were carefully reviewed and selected from 662 submissions. They are organized in topical sections on sensor networks, 3G/B3G networks, peer-to-peer systems, caching and routing, wireless networks, multicast, ad hoc networks, algorithms, security, peer-to-peer systems and Web service, traffic and network management, QoS, routing, internet application, TCP/IP and measurement, design and performance analysis, agent-based algorithms, and security algorithms.