Volltext-Downloads (blau) und Frontdoor-Views (grau)

Comparison of Different Digital Front End Structures at the OFDM Receiver

  • It is common to have a large noise and/or a strong interference around the frequency band of a Power Line Communication (PLC) system due to the fact that the PLC channel is not designed for communication. If there are no efficient operations at the receiver to suppress this out-of-band noise and interference to some extent, the Signal-to-Noise Ratio (SNR) will decrease and system will suffer performance loss consequently. Normally, the effort of Analog Front End (AFE) on the suppression of out-of-band interference is finite and it is uneconomic to change the AFE structure to make a performance improvement. Therefore, an appropriate structure of Digital Front End (DFE) at the receiver is necessary to reduce the impact of out-of-band noise and interference furthermore. In this paper, three different kinds of DFE structure at the receiver are introduced: classic DFE, time domain Nyquist windowing and Equivalent Complex Baseband (ECB) approach. The performance of these DFE structures is compared, not only from the aspect of out-of-band suppression, but also from the system overhead they need.

Export metadata

Additional Services

Share in Twitter Search Google Scholar


Author:Gao Hongjian, Gerd Bumiller
Parent Title (English):2013 IEEE 17th International Symposium on Power Line Communications and Its Applications Johannesburg, South Afrika
Document Type:Conference Proceeding
Year of Completion:2013
Release Date:2019/04/29
Institutes:Fachbereich 1 - Institut Informatik
DDC class:000 Allgemeines, Informatik, Informationswissenschaft / 000 Allgemeines, Wissenschaft
Licence (German):License LogoNo Creative Commons