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Hier finden Sie wissenschaftliche Publikationen aus den FraunhoferInstituten. Window design for nonorthogonal interference reduction in OFDM receivers
 Institute of Electrical and Electronics Engineers IEEE: IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, 2006, SPAWC '06 : July 2006, Cannes, France Piscataway, NJ: IEEE, 2006 ISBN: 078039710X Art. 4153842 
 Workshop on Signal Processing Advances in Wireless Communications (SPAWC) <7, 2006, Cannes> 

 Englisch 
 Konferenzbeitrag 
 Fraunhofer IIS () 
Abstract
For conventional orthogonal frequencydivision multiplexing (OFDM) systems, the guard interval is disregarded in the receiver and rectangular shaped windows are used implicitly due to the discrete Fourier transform (DFT). We consider a Nyquistshaped window in the receiver, so that the transmit signal does not need to be modified, and optimize the window shape in order to suppress interference from nonorthogonal single carrier interferer signals. For the window coefficients, a closed form solution is derived. This type of interference usually occurs in OFDM radio systems like Digital Radio Mondiale (DRM) that are operating in low frequency bands. (Disturbance is given for instance by harmonics of switchedmode power supplies.).