This book constitutes the refereed proceedings of the 11th European Conference on Wireless Sensor Networks, EWSN 2014, held in Oxford, UK, in February 2014.
The 12 revised full papers presented were carefully reviewed and selected from 50 submissions. The papers cover a wide range of topics in the following areas: network protocols, system issues, reliability, and sensing.

Network Protocols.- System Issues.- Reliability.- Sensing.