Personal network and their federations (called Fednet) are considered as one of the promising future concepts regarding the personal communication. In this thesis, we first studies the state of the art of Fednet, from which we know there are two approaches for providing the services in Fednet, one is overlay and the other is proxy-based. Each of the approaches has the advantages and drawbacks. To trade off between these two approaches, we propose a new scheme, which can make the way of service provisioning in Fednet flexible and adaptable to the changing environment and the user’s preference.