Open AccessNovel Equalization On‐Channel Repeater with Feedback Interference Canceller in Terrestrial Digital Multimedia Broadcasting System
Author(s) -
Park Sung Ik,
Eum Homin,
Park So Ra,
Kim Geon,
Lee YongTae,
Kim Heung Mook,
Oh Wangrok
Publication year - 2009
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.09.0109.0009
Subject(s) - repeater (horology) , computer science , transmitter , channel (broadcasting) , relay , equalization (audio) , electronic engineering , broadcasting (networking) , interference (communication) , signal (programming language) , power (physics) , telecommunications , engineering , computer network , encoding (memory) , artificial intelligence , physics , quantum mechanics , programming language
In this paper, we propose a novel equalization on‐channel repeater (OCR) with a feedback interference canceller (FIC) to relay terrestrial digital multimedia broadcasting signals in single frequency networks. The proposed OCR not only has high output power by cancelling the feedback signals caused by insufficient antenna isolation through the FIC, but also shows better output signal quality than the conventional OCR by removing multipath signals existing between the main transmitter and the OCR through an equalizer. In addition, computer simulations and laboratory test results demonstrate that the proposed OCR successfully cancels feedback signals and compensates channel distortions and provides a higher quality transmitting signal with higher output power than conventional OCRs.