About us
The focus areas of DCE’s research and teaching activities are networking architectures and protocols for emerging IP networks, data security, digital transmission methods and mobile positioning techniques and the related signal processing and waveform solutions, design and implementation of radio frequency (RF) circuits and systems, and radio network planning and optimization. Signal processing based technologies, including radio signal processing, is one of the key strategic research areas at TUT.
The Department is located in Tietotalo (G- and H-wings).The Head of Department is Mikko Valkama.
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Teaching and research laboratories
In the radio communications and radio signal processing fields, the Department’s measurement and prototyping laboratories can support both high-quality arbitrary RF waveform generation and measurements, real-time digital signal processing, as well as full radio network operation measurements.
On the radio link, device implementation and signal processing sides the laboratory facilities contain, for example state-of-the-art RF signal generators, oscilloscopes, vector analyzers, Xilinx FPGA's, GNU radio hardware, and USRP's. These enable practical measurement based verification and prototyping platforms, for example for developed communication waveforms and transceiver signal processing algorithms in real-time environments.
For the radio network planning studies and research, the laboratories contain UMTS/WCDMA, HSPA and LTE test-networks with true base stations and corresponding terminal equipment. This enables actual measurement based analysis of, for example radio signal propagation in indoor and outdoor environments, impact of cellular network topology planning and antenna placement on network coverage and capacity, and interference modeling and analysis between heterogeneous network structures.
The RFCC laboratory, built up in an EMI shielded room, is equipped with RF measurement equipment and a probe station supporting characterization of RF integrated circuits. Especially, the laboratory includes precision equipment for oscillator phase noise measurements.
The Department’s Internet laboratory with 16 student places, 20 routers (Cisco and Juniper), 12 switches and flexible connectivity options, is available for the networking research outside the short periods, when the laboratory is used intensively for teaching purposes. In the laboratory, complicated network topologies can be built and massive traffic loads and congestion situations for hundreds of (virtual) hosts can be created, measured and analyzed. The laboratory can be totally isolated, or fully connected with 1 Gbit/s links to the Internet, using IPv4 or native IPv6 network protocols.