Patent · US Active

Systems and methods for reduced complexity LDPC decoding

US7895500B2 · kind B2 · utility

23Cited by

4References

22Claims

0Family size

Assignee

VIA TELECOM, INC. · KY

Inventors

Guohui Sun · Beijing, CN
Jing Jin · Beijing, CN
Wenbin Yao · Shanghai, CN
Hongwen Yang · Shanghai, CN

Key dates

Filing date	Mar 21, 2007
Grant date	Feb 22, 2011
Priority date	—
Expiry date	Dec 22, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/0057
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Systems and methods for generating check node updates in the decoding of low-density parity-check (LDPC) codes use new approximations in order to reduce the complexity of implementing a LDPC decoder, while maintaining accuracy. The new approximations approximate the standard sum-product algorithm (SPA), and can reduce the approximation error of min-sum algorithm (MSA) and have almost the same performance as sum-product algorithm (SPA) under both floating precision operation and fixed-point operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.