Abstract
In this paper we propose a scheme for blind time-period
synchronization of Low-Density Parity-Check Convolutional
Codes (LDPC CC) over the AWGN channel. Reliable timeperiod
synchronization for LDPC CC coded transmission is
a requirement for successful decoding at the receiving end.
The proposed scheme exploits parity-check constraints incorporated
into LDPC CC coded stream, and variants based
both on the hard and soft-detected symbols are presented.
We show that time-period synchronization can be acquired
during the time-frame of one LDPC CC time period, which
is considerably faster and less complex when compared
to the block LDPC coded transmission of similar performance.
Additionally, by appending the time-period synchronization
preprocessors, we effectively incorporate the timeperiod
synchronization into the iterative LDPC CC decoder
'pipeline' structure. Our simulation study demonstrates flexibility
and excellent performance of the proposed scheme.
Original language | English |
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Pages | 373-377 |
Number of pages | 4 |
Publication status | Published - 24 Aug 2009 |
Event | 17th European Signal Processing Conference - Glasgow, Scotland Duration: 24 Aug 2009 → 28 Aug 2009 |
Conference
Conference | 17th European Signal Processing Conference |
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City | Glasgow, Scotland |
Period | 24/08/09 → 28/08/09 |
Keywords
- low-density parity-check convolutional codes
- LDPC CC