Title :
Overlapped Semi-parallel LDPC Decoder with Dual-diagonal Structure for WiBro Portable Subscriber Station
Author :
Byun, Yong Ki ; Park, Jong Kang ; Kim, Jong Tae
Author_Institution :
Sch. of Inf. & Commun. Eng., Sung Kyun Kwan Univ., Seoul
Abstract :
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.
Keywords :
Internet; WiMax; broadband networks; decoding; mobile radio; parity check codes; Internet; WiBro portable subscriber station; check node update; decoding; dual-diagonal parity matrix structure; dual-diagonal structure; mobile WiMAX; semi-parallel LDPC decoder; Clocks; Delay; Error correction codes; Hardware; Hydrogen; Iterative decoding; Parity check codes; Sparse matrices; Web and internet services; WiMAX;
Conference_Titel :
Consumer Electronics, 2007. ICCE 2007. Digest of Technical Papers. International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
1-4244-0763-X
Electronic_ISBN :
1-4244-0763-X
DOI :
10.1109/ICCE.2007.341515
