"This European Reintegration Grant proposal aims to consolidate the career of Fernando J. Velez through a research programme and a series of initiatives on next generation mobile networks in a context of coexistence to be developed in the Instituto de Telecomunicações/Universidade da Beira Interior. It will help him having conditions to a fruitful reintegration in his original team and Institution in Portugal. Networks of the future are tending towards a diverse wireless networking world, where scenarios define that the end-user will be able to attain any service, at any time on effectively any network that is optimised for the application at hand resulting in “flexibility and choice” to enhance the quality of life of the individual, in a context of seamless interoperability between network operators and access technologies, complemented by a business exploitation strategy that adapts to future economic infrastructures. The economic vision targets a converged network and service infrastructure for communication, computing and media applications that will create new market opportunities for 3rd party service providers. The drive for ubiquitous, cost-effective communication in unison with new service provisioning opportunities provided the impetus for the OPTIMOBLE proposal. It intends to design, implement and demonstrate “cooperative networking and optimisation strategies” for next generation networks that will provide a significant step towards network convergence in a truly heterogeneous environment. Cooperative-common radio resource management strategies are considered, assisted by context-aware information (e.g., positioning) for maximising network utility and QoS delivery, and by incorporating ad-hoc relaying and mesh networking mechanisms to ensure virtually collocated heterogeneous systems and coverage. These visions will be complemented by a business feasibility study, and will include innovative graphical cellular planning tools."