Year: 2019
Type: article
Abstract: This paper presents a television (TV) transmitter for wireless video streaming applications in TV white space band.The TV transmitter is composed of a digital TV (DTV) signal generator and a UHF-band RF transmitter.Compared to a conventional high-IF heterodyne structure, the RF transmitter employs a zero-IF quadrature direct up-conversion architecture to minimize hardware overhead and complexity.The RF transmitter features I/Q mismatch compensation circuitry using 12-bit digital-to-analog converters to significantly improve LO and image suppressions.The DTV signal generator produces an 8-vestigial sideband (VSB) modulated digital baseband signal fully compliant with the Advanced Television System Committee (ATSC) DTV signal specifications.By employing the proposed TV transmitter and a commercial TV receiver, over-the-air, real-time, high-definition video streaming has been successfully demonstrated across all UHF-band TV channels between 14 and 69.This work shows that a portable hand-held TV transmitter can be a useful TVband device for wireless video streaming application in TV white space.
Authors: Hyunchol Shin, Hyukjun Oh
Institution: Kwangwoon University
Language: English
Subfield: Media Technology
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $115
Awards: G1224234828, G517753373
OpenAlex ID: W2989147883