Approaching new horizons of capacity and energy efficiency is foundational for next-generation broadband wireless communications. Toward this goal, the IOF proposal “Career LTE” pursues fundamental research with inter-disciplinary efforts, and integrates the outcome with engineering practice, to push forward the state-of-the-art of performance and energy efficiency for heterogeneous Long Term Evolution Advanced (LTE-A) deployment.Capacity and energy have been dealt with from the perspectives of information theory, optimization, physical layer technologies, and networking. To go beyond the cutting edge, the time has come to depart from each of these perspectives alone, toward producing new knowledge by synergizing these fields.The outgoing phase develops computational models for analyzing emerging capacity-enhancing concepts, and investigates fundamental performance-energy tradeoffs. Here, the fellow extends his knowledge with information theory, and cross-layer and green networking, and fuses them with his strong background in optimization and industrial experience in 4G radio access. Integrating the molded knowledge with the fellow’s experience in European industry, the return phase develops new methodologies for energy-efficient heterogeneous LTE-A deployment.The applicant has an excellent track record in publications and funding, along with industrial experience. His professional achievements so far demonstrate his ability to quickly absorb new knowledge and develop leadership skills. In addition to the scientific objectives, the IOF project benefits: 1) the fellow’s long-term career goal of becoming a world-class ICT research leader, 2) a long-standing European-USA research and educational link for life-long learning, 3) the formation of a knowledge-dynamic team to attract young and talented researchers for careers in ICT Europe, 4) European industrial competitiveness by turning scientific findings into innovation via the fellow’s background at Ericsson.