CONWIRE 2013 (3rd IEEE Workshop on Convergence among Heterogeneous Wireless Systems in Future Internet) is a Workshop in association with the 14th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM 2013), to be held in Madrid (Spain), June 4, 2013. Future Internet envisions the synergy among heterogeneous wireless communications will co-exist providing the end user the "flexibility and choice", to improve his/her quality of life. The integration of heterogeneous networks in multi-access and multi-operator environment is revolutionizing the ICT area, introducing new opportunities, better communication channels and an enhanced quality of provided applications and services. In this environment, a user is able to connect to a number of heterogeneous RATs (Radio Access Technologies), either covering the same, or complementing geographical areas. These networks can be macro-cellular, WLANs, femto-cellular or even ad-hoc. In this environment, seamless mobility is coupled according to user preferences, enabling mobile users to be "Always Best Connected" (ABC) so that Quality of Experience is optimised and maintained.