Shortened LDPC codes accelerate OSD decoding performance

Abstract Medium-length LDPC codes are in demand certain areas such as mobile environment (Wi-Fi and Mobile WiMAX) telecommand links from the ground to space because of their lower latency properties. However, length these is rather short, decoding error rates worse than those long-length codes. In this paper, we show that combination shortened codes, whose positions properly selected, ordered statistic (OSD) significantly improves error. For best choice shortening positions, used integer programming approach. particular, utilized Feldman–Wainwright–Karger code polytope for purpose. Some studies have independently reported efficiency OSD methods. This paper emphasizes results multiplicative effectiveness.