In 2000, the Signal Processing and Speech Communication Laboratory (SPSC Lab) of Graz University of Technology (TU Graz) was founded as a research and education center in nonlinear signal processing and computational intelligence, algorithm engineering, as well as circuits & systems modeling and design. It covers applications in wireless communications, speech/audio communication, and telecommunications.

The Research of SPSC Lab addresses fundamental and applied research problems in five scientific areas:

Result of the Month May 2012

Previous results of the month

Capacity and Capacity-Achieving Input Distribution of the Energy Detector

This work presents the channel capacity and capacity-achieving input distribution of an energy detection receiver structure. Using the Blahut-Arimoto algorithm combined with a particle method, the positions and probabilities of the optimal mass points were found. It was shown that the capacity increases with decreasing noise dimensionality M and increasing peak-to-average power ratio (PAPR, parameter r in figure) and that the achieving input distribution is discrete with a finite number of mass points.

Contact:
Erik Leitinger

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