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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Imad, R. Houcke, S. Ghogho, M. |
| Copyright Year | 2009 |
| Description | Author affiliation: Institut Telecom; Telecom Bretagne, UMR CNRS 3192 Lab-STICC, Brest, France (Imad, R.; Houcke, S.) || School of Electronic and Electrical Engineering, University of Leeds, UK (Ghogho, M.) |
| Abstract | We consider the problem of carrier phase offset estimation and propose two blind estimation techniques for Low-Density Parity-Check (LDPC) coded systems. The first technique is applied to a Binary Phase Shift Keying (BPSK) modulation while the second is applied to higher order modulations. These techniques are based on the calculation and minimization of functions of the Log-Likelihood Ratios (LLR) of the syndrome elements obtained according to the parity check matrix of the error correcting code. In the case of a BPSK modulation, the global minimum of the cost function is obtained using the Gradient descent method while for higher order modulations, we use the Simulated Annealing algorithm. Simulation results show that the proposed techniques significantly outperform many phase estimation methods and are very powerful even at low signal-to-noise ratios. |
| Starting Page | 638 |
| Ending Page | 642 |
| File Size | 264732 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424436958 |
| DOI | 10.1109/SPAWC.2009.5161863 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-06-21 |
| Publisher Place | Italy |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Phase estimation Parity check codes Binary phase shift keying Phase modulation Cost function Simulated annealing Error correction codes Signal to noise ratio Telecommunications Modulation coding |
| Content Type | Text |
| Resource Type | Article |
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