A Modified TV Tuner for Spectrum Sensing in TV UHF Bands

Abstract

A novel system containing low cost TV box has been designed to sense the UHF TV band spectrum.Microcontroller chip is programmed using micro Pascal software to control the TV tuner for scanning the TV band. The implemented system has been used to measure the utilization of the UHF TV band covering the frequency range from 470 to 860 MHz in Cairo (EGYPT). The sensing output data has been recorded and analyzed using suitable software. The obtained results demonstrate significant amount of spectrum available for deployment of cognitive radio systems and IEEE 802.22 WRAN standard in the UHF TV broadcasting band General TermsA new methodology for detecting UHF TV broadcasting band, TV tuner, UHF TV Spectrum usage.