The Performance Simulation of MIMO-OFDM System Based on QC-LDPC;

The simulation results and analysis indicate that such construction algorithm is of the advantages as follows: The performance of irregular QC-LDPC codes constructed by the proposed methods in the paper not only be better than the regular QC-LDPC codes by the direct construction algorithm,but also be closed to the random-like LDPC codes;They have lower error floors compare with the random-lik.

This paper presents a decoding method for regular QC-LDPC codes.

Since the parity-check matrix of the QC-LDPC code is composed of blocks of circulant matrices,the required memory for storing it can be significantly reduced,compared with randomly constructed LDPC codes.

Moreover,when dimension of the extended matrix of the parity check matrix of a QC-LDPC code is a prime number,approaches fo.

The Gas Hole Defect Prevention of Ti Castings by QC Method;

How to Launch the Work of QC Group in New Situation;

QC Application in Signal & Communication depts of 1999 is Sustainable and Healthy Development;

Brief talk on Sampling Links of QC/QA Procession in Environmental Monitoring;

Application of QC/QA System to Asphalt Concrete Pavement Construction of Expressway;