Broadcast Industry Guide Specifications For Next Gen TV SFN Design and Implementation
Abstract: Designing a Single Frequency Network (SFN) for the Next Generation of Television (Next Gen TV) deployment is complicated and time consuming. While the software tools are available to do the required studies, there are dozens of parameters that create thousands of possible outcomes. Many engineers will be designing systems, and those reports will be shared with various customers.To enable decision makers in the Broadcast Industry to make appropriate design decisions, a guide specification document has been created to standardize parameters to allow for standardized reports and metrics. For example, some initial Fast Fourier Transform (FFT) and Modulation and Coding (Mod/Cod) combinations will be identified, from highly robust low data rate uses that will work for low Carrier to Noise (C/N) ratios to less robust high data rate uses that require higher C/N ratios. Standard FCC 10 meter receive antenna heights are useful for regulatory compliance determinations, but in addition, portable and typical indoor antenna heights are much lower (1.5m) and are useful in determining more realistic reception predictions.Hence, this paper endeavors to outline some of the basic design specifications or planning factors to be utilized in standardized SFN designs for Next Gen TV SFN design and deployment.