降状态序列检测（RSSD）是一种减少信道码译码网格状态数形成更小的结构的一种方法。-Reduced-state sequence detection, or RSSD, is a method of reducing the state trellis of a channel code to a smaller structure.

Why LDPC Codes are Strong Candidates for Next Generation Wireless Systems ♦ Next Generation Wireless Systems typically require higher data throughput in a given bandwidth • High rate FEC with higher order modulation (e.g. cdma2000