关键词：低密度奇偶校验码；迭代解码；仿真；电子信息
摘 要：In this chapter, low-density parity-check (LDPC) codes, a class of powerful iteratively decodable error correcting codes, are introduced. The chapter first reviews some basic concepts and results in information theory such as Shannon's channel capacity and channel coding theorem. It then overviews the Flash memory channel model. Finally, it addresses LDPC codes describing both their structure and efficient implementation, and their decoding algorithms. Simulation results are also provided.