Title :
A possible frequency planning method and related model calculations for the sharing of VHF band II (87.5-108 MHz) between FM and DAB (digital audio broadcast) systems
Author :
Prosch, Theodor A.
Author_Institution :
Sueddeutscher Rundfunk, Stuttgart, Germany
fDate :
6/1/1991 12:00:00 AM
Abstract :
A frequency planning method is proposed that is based on regular lattices derived from factorial rhombic numbers. It is shown theoretically that the spectrum efficiency can be improved by about 30% in comparison to existing broadcast networks. This implies less stringent constraints for frequency multiplexing at the transmitter sites. A frequency plan and model calculations of the network coverage are given for a test area. It is shown that the capacity of the VHF spectrum is sufficient to introduce DAB yet still broadcast the same amount of existing FM programs
Keywords :
frequency allocation; frequency modulation; radio broadcasting; 87.5 to 108 MHz; DAB; FM; VHF band II; broadcast networks; digital audio broadcast; factorial rhombic numbers; frequency planning method; model calculations; regular lattices; spectrum efficiency; Communication systems; Constraint theory; Digital audio broadcasting; Electromagnetic interference; Electromagnetic propagation; Europe; Frequency division multiplexing; Radio broadcasting; Radio transmitters; Testing;
Journal_Title :
Broadcasting, IEEE Transactions on
