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.
|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||17th European Signal Processing Conference|
|Period||24/08/09 → 28/08/09|
- low-density parity-check convolutional codes
- LDPC CC
Stefanovic, C., Vukobratovic, D., Bajic, D., & Stankovic, V. M. (2009). Blind time-period synchronization for lDPC convolutionally coded transmission. 373-377. Paper presented at 17th European Signal Processing Conference, Glasgow, Scotland, .