All-Digital Radio-over-Fiber: A New Radio Transmitter Architecture for Future Wireless Applications
An ever growing use of wireless communication has created an enormous increase in mobile data traffic, which is expected to grow even more as new applications emerge in the future. Next generation networks now being studied promise drastically improved capacity and energy efficiency through new frequency bands (millimeter wave), more basestations (HetNets), and more antennas per base station (Massive MIMO). Their potential capacity gains will, however, be overshadowed by the tremendous energy consumption, complexity, and cost of realizing them with existing hardware solutions.
This project is dedicated to a new radio transmitter architecture directly targeting the needs in future wireless communication applications. By incorporating an all-digital transmitter approach all basic analog and energy consuming parts of a traditional radio transmitter (e.g. oscillators, modulators, D/A converter, etc.) are replaced by equivalent digital operations, which leads to an outstanding flexibility, scalability, energy efficiency, and low cost. By integrating it with emerging high-speed optical data interconnect technology, completely new possibilities for a lightweight radio transmitter suitable for future base stations are enabled. These unique features of the resulting all-digital radio-over-fiber (ADRoF) transmitter architecture are attractive also in a broader perspective and a wide-spread use in applications ranging from automotive radars, to smart antenna arrays, medical treatment, and low power Internet-of-Things (IoT) is therefore envisioned.
Our overall goal of the project is to investigate the ultimate limits of the ADRoF architecture. We will apply a truly multi-disciplinary approach where all major components of the architecture, ranging from optical components, to RF circuits, and signal processing will be individually and jointly optimized for their use in the new architecture. With our research expertise covering exactly these areas, and with access to world-class microwave and photonics lab infrastructure at Chalmers, we are now in a perfect position to build the theoretical and experimental foundation for widespread exploration of the ADRoF architecture in the futur
The project is closed: 31/12/2019
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Professor and Head of Laboratory at the Department of Microtechnology and Nanoscience, Microwave Electronics Laboratory
Christian Fager received his Ph.D. degree from Chalmers University of Technology, Sweden, in 2003. He has continued his career at the Microwave Electronics Laboratory at Chalmers where is a Full...
Full Professor, Vice Head of Department for undergraduate education, Electrical engineering
Thomas Eriksson is Vice Head of Department of Electrical Engineering and responsible for undergraduate and Master's education. As a Full Professor of Communication systems, his research is focused on...
Associate Professor, Microtechnology and Nanoscience, Photonics Laboratory
Johan S. Gustavsson received the M.Sc. degree in electrical engineering and the Ph.D. degree in photonics from the Chalmers University of Technology, Göteborg, Sweden, in 1998 and 2003, respectively...
PhD student at the Department of Microtechnology and Nanoscience, Microwave Electronics Laboratory
- Swedish Research Council (VR) (Public, Sweden)