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Single-Frequency Networks (SFN)

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Abstract

The ability to create a network of transmitters operating on the same carrier frequency in synchronized method, i.e., the single-frequency network (SFN), is closely related to the OFDM channel modulation system developed for DAB digital radio, especially that transmitter separations within SFN depend on length of the guard interval in the OFDM symbols.

The following are new problems in the SFN:
  • Transmitter signal synchronization

  • Transmitter identification within SFN

  • Role of gap fillers

  • Intra-network interferences

Computer demonstrations of signals in simple 6 SFN model indicate on the role of relative time delays in planning SFN.

Keywords

SFN concept SFN planning rules SFN synchronization TII information Gap-fillers Local programs within SFN Baseband SFN signals 

References

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Copyright information

© The Author(s), under exclusive license to Springer Nature Switzerland AG 2022

Authors and Affiliations

  1. 1.National Institute of TelecommunicationsWroclawPoland

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