Low density parity check decoder

A method and system for decoding low density parity check ("LDPC") codes. An LDPC code decoder includes LDPC decoding circuitry comprising a Q message generator and a P sum adder array. The Q message generator combines an R message from a previous iteration with a P message to produce a Q...

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Bibliographische Detailangaben
Hauptverfasser:	Choi, Gwan S, Gunnam, Kiran Kumar
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CALCULATING CODE CONVERSION IN GENERAL CODING COMPUTING COUNTING DECODING ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS
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Beschreibung
Zusammenfassung:	A method and system for decoding low density parity check ("LDPC") codes. An LDPC code decoder includes LDPC decoding circuitry comprising a Q message generator and a P sum adder array. The Q message generator combines an R message from a previous iteration with a P message to produce a Q message. The P sum adder array adds the P message to a difference of an R message from a current iteration and the R message from the previous iteration to produce an updated P message.