Publications

White paper

Matthias Stege: A Flexible Prototyping Platform for Wireless Communication Systems

Abstract: In this paper the Hardware in a Loop concept is introduced for the design of wireless communication systems. The aim is to verify the algorithm design at a very early stage of the design flow. This is done by a step-by-step hardware implementation of the simulated algorithms. Signalion provides a rapid prototyping platform to enable this algorithm verification on a hardware with a minimum of additional effort. This approach helps to identify design errors and implementation faults even before the first system tape-out. Thus, it reduces time to market and development costs by helping to avoid numerous chip redesign cycles. It is shown, that the hardware platform can be used for complex PHY-implementations such as MIMO-OFDM modems.

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Published at EUSIPCO 2006

M. Stege, T. Hentschel, M. Löhning, M. Windisch, G. Fettweis: IEEE 802.11n MIMO-Prototyping with Dirty RF using the Hardware-in-the-Loop Approach

Abstract: Modern wireless systems such as IEEE 802.11n employ highly integrated hardware. Especially for the processing at radio frequencies, this high integration causes many undesired effects of signal distortion and degradation that must be simulated comprehensively before finalizing the system design. However, often the model accuracy is not sufficient to obtain sound results of the simulations; and in the case of sufficiently accurate models the simulation times get immense. A way out is to use real radio frequency hardware and digital physical layer simulations together in a hardware-in-the-loop system. Short simulation times and real-world radio characteristics are the unbeatable advantage of the hardware-in-the-loop approach.

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