首页>
外国专利>
Rate-compatible protograph LDPC code families with linear minimum distance
Rate-compatible protograph LDPC code families with linear minimum distance
展开▼
机译:具有线性最小距离的速率兼容原型LDPC代码系列
展开▼
页面导航
摘要
著录项
相似文献
摘要
Digital communication coding methods are shown, which generate certain types of low-density parity-check (LDPC) codes built from protographs. A first method creates protographs having the linear minimum distance property and comprising at least one variable node with degree less than 3. A second method creates families of protographs of different rates, all having the linear minimum distance property, and structurally identical for all rates except for a rate-dependent designation of certain variable nodes as transmitted or non-transmitted. A third method creates families of protographs of different rates, all having the linear minimum distance property, and structurally identical for all rates except for a rate-dependent designation of the status of certain variable nodes as non-transmitted or set to zero. LDPC codes built from the protographs created by these methods can simultaneously have low error floors and low iterative decoding thresholds, and families of such codes of different rates can be decoded efficiently using a common decoding architecture.
展开▼