Robustness against the effects of multipath in an ISDB-T LDM broadcast system using diversity at reception
Keywords:
Integrated Services Digital Broadcasting Terrestrial, Layer Division Multiplexing, Maximal Ratio Combining, Low-Density Parity Check, Software Defined Radio, GNU Radio Companion, multipath channelsAbstract
This paper presents the ISDB-T LDM system, with the Core Layer fully compatible with the traditional ISDB-T and the Enhanced Layer using the Non-Uniform Constellation 64-QNUC, in order to improve spectral efficiency, performance, robustness and useful bit rate, so that it is possible to use it for UHDTV applications. In order to reach these goals, in addition to the LDM technique, the LDPC encoder/decoder concatenated with the BCH were used. The SDR/GRC implementation was used and the reception diversity was achieved by the use of the MRC method. To prove its efficiency, some tests were performed using the proposed system in environments with AWGN and multipath channels.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Copyright Transfer Agreement – Cover Letter
The Copyright Transfer Agreement – Cover Letter must be submitted together with the article.
The Corresponding Author must, on behalf of all co-authors, complete all the required information, check the boxes, print=, SIGN and scan the (signed) document.
The Copyright Transfer Agreement – cover Letter must also be forwarded in PDF format. Template available at:
