Method and device for controlling the decoding of a ldpc encoded codeword, in particular for dvb-s2 ldpc encoded codewords
A technology of LDPC codes and codewords, which is applied in the direction of coding, coding components, and other decoding technologies, and can solve problems such as wasting energy and processing time
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0054] [54] In the following description, the LDPC code is the DVB-S2 LDPC code defined in "ETSI EN302 307 v1.1.1 (2004-06)" defining the DVB-S2 standard, but the present invention is not limited to such a code .
[0055] [55] The parity check matrix H of an LDPC code is a sparse binary matrix. The set of valid codewords x must satisfy: H. t x=0.
[0056] [56] Columns in H are associated with bits of a codeword, and rows in H correspond to parities. A non-zero element in a row of H indicates the corresponding bit is used for that parity. The code can be best described by a bipartite graph (Fig. 1) called a Tanner graph, which is a graphical representation of the correlation between code bits and parity checks. Code bits are represented as variable nodes VN i (circle), parity is denoted as check node CN i (square), connecting them with edges. The number of edges on each node is called node degree. If the node degree is the same for all variable nodes, the parity check m...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com