Xavier Carcelle holds a M.Sc. in Electrical Engineering and a Teaching Degree in EE from the Ecole Normale Superieure of Cachan, France. He also spent a year in the Master Of Science Program in EE at Texas A&M University. He has worked as CTO for a French Internet Portal in 2000 and then joined the EDF Group as a telecommunications expert in 2001. He's worked on several telecommunications projects including serving as architect for the first SDH Loop based on fiber optics wrapped around high-voltage lines, and as software engineer for a Californian subsidiary of the EDF Group working on Video Over IP, and then for another subsidiary specializing in PLC Networks (Indoor and Outdoor). He is now a member of the I&C core team of EDF R&D as a Wireless Expert and a ZigBee Alliance member.