Journals Proceedings

Abstract

The future communication systems aim at ef- fective error control coding methods with eective error performance and considerable code rates. LDPC codes are again gaining popularity in future communication systems due to ease in encoding design, eective BER and accept- able code rate. This paper presents a new method for con- structing an irregular LDPC codes from low column weight LDPC codes. It is discussed that the proposed method has simple encoding process and less memory requirements. It has been shown that proposed method improves BER per- formance on AWGN channel by approx. 1 dB per extension level with only slight reduction in code rate.