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Journal Article
Novel Equalization On-Channel Repeater with Feedback Interference Canceller in Terrestrial Digital Multimedia Broadcasting System
- Authors
- Sung Ik Park, Ho Min Eum, So Ra Park, Geon Kim, Yong Tae Lee, Heung Mook Kim, Wang Rok Oh
- Issue Date
- 2009-08
- Citation
- ETRI Journal, v.31, no.4, pp.357-364
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- In this paper, we propose a novel equalization onchannel 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.
- KSP Keywords
- Antenna isolation, Broadcasting system, Computer simulation(MC and MD), Digital multimedia broadcasting, Interference Canceller, Signal quality, feedback signal, high output power, laboratory test, multipath signals, single frequency