This volume is the third part of a four-volume set (CCIS 190 CCIS 191 CCIS 192 CCIS 193)
which constitutes the refereed proceedings of the First International Conference on Computing
and Communications ACC 2011 held in Kochi India in July 2011. The 70 revised full papers
presented in this volume were carefully reviewed and selected from a large number of
submissions. The papers are organized in topical sections on security trust and privacy
sensor networks signal and image processing soft computing techniques system software
vehicular communications networks.
