High rate UWB-LDPC code and its soft initialization

Authors:
Jia Hou;Moon Ho Lee
Affiliations:
Institute of Information & Communication, Chonbuk National University, Chonju, Korea;Institute of Information & Communication, Chonbuk National University, Chonju, Korea
Venue:
ICN'05 Proceedings of the 4th international conference on Networking - Volume Part I
Year:
2005

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Abstract

In this paper, we describe a kind of high rate low density parity check (LDPC) code and its decoding scheme for ultra wideband (UWB) communication. Particularly, the proposed scheme uses a hybrid soft normalization algorithm from the autocorrelations of UWB signals to initialize the LDPC decoder, and it integrates several normalized soft values of UWB signals as sine (BPSK) or cosine (PPM) elements by using the window concept.