Combined method for frequency error detection/correction in DAB-based systems

  • Authors:

  • Andrey Skrebstov;Christian Kocks;Bangfu Tao;Guido H. Bruck;Sebastian Rickers;Peter Jung

  • Affiliations:

  • University of Duisburg-Essen, Duisburg, Germany;University of Duisburg-Essen, Duisburg, Germany;Samsung Electronics Research, United Kingdom;University of Duisburg-Essen, Duisburg, Germany;University of Duisburg-Essen, Duisburg, Germany;University of Duisburg-Essen, Duisburg, Germany

  • Venue:
  • Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management
  • Year:
  • 2011

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Abstract

The digital audio broadcasting (DAB) standard has established the family of standards for efficient and reliable multimedia broadcasting. Based on OFDM technology the DAB standard provides high spectrum efficiency and reliable data transfer. Due to its limited channel bandwidth, DAB can be used for cognitive radio (CR) application in the TV whitespace bands. OFDM technique requires precise frequency for proper operation; at the same time the end-user equipment must have competitive price. This tradeoff is normally being solved by using carrier frequency offset (CFO) estimation and compensation blocks in the receiver path. This manuscript describes a combined algorithm for synchronization and CFO estimation for the DAB system. The method uses information about DAB synchronization channel and phase reference symbol (PRS).