Overlapped Semi-parallel LDPC Decoder with Dual-diagonal Structure for WiBro Portable Subscriber Station

Overlapped Semi-parallel LDPC Decoder with Dual-diagonal Structure for WiBro Portable Subscriber Station

This paper presents an efficient semi-parallel overlapped LDPC decoding algorithm for WiBro portable subscriber station. We use the dual-diagonal parity matrix structure that the check node update and variable node update can be executed concurrently. With this algorithm, decoding can be completed w...

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Bibliographische Detailangaben
Hauptverfasser: Yong Ki Byun, Jong Kang Park, Jong Tae Kim
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Clocks
Delay
Error correction codes
Hardware
Hydrogen
Iterative decoding
Parity check codes
Sparse matrices
Web and internet services
WiMAX
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Beschreibung
Zusammenfassung:This paper presents an efficient semi-parallel overlapped LDPC decoding algorithm for WiBro portable subscriber station. We use the dual-diagonal parity matrix structure that the check node update and variable node update can be executed concurrently. With this algorithm, decoding can be completed within 72.2% of clock cycles, compared with non-overlapped decoding.
ISSN:2158-3994
2158-4001
DOI:10.1109/ICCE.2007.341515