Timing Recovery and Carrier Synchronization Using LDPC Codes: Using Soft Decision Feedback to Aid Timing and Carrier Recovery - Softcover

Valles, Esteban Luis

Softcover

ISBN 10: 3639081773 ISBN 13: 9783639081770

Publisher: VDM Verlag, 2008

Synopsis

This book provides techniques for symbol tracking andcarrier acquisition in a Low-Density Parity-Check(LDPC) coded transmission. In traditional receiverarchitectures, acquisition and tracking are performedusing phase-lock techniques that are independent ofthe channel-code decoding process. In burst receptionscenarios, bandwidth inefficientpiloting must often be embedded in a transmission inorder to accelerate acquisition to aid symbol timetracking at low signal-to-noise ratios. In this bookwe show that outputs from an iterative decoder can beused to improve the estimation of symbol frequencyand phase in either a pilotless environment orcomplementing available pilot information. Wedescribe a method capable of handling very largeoffsets with complexity that grows linearly with themaximum offset size. Combining information from theset of parity-check equations of a LDPC codeobservations with a properlycalibrated phase locked loop allows successfultracking in very high noise scenarios. The problem ofcarrier frequency estimation under these high noiseconditions is also addressed.

About this title

About the Author

Esteban L. Vallés received his B.S. degree from Universidad Nacional del Sur in Bahía Blanca, Argentina, his M.S. degree fromUniversity of California Irvine and his Ph.D. from University ofCalifornia Los Angeles, all in Electrical Engineering. His areasof interest include channel-coding, timing recovery and softwaredefined radios.

Edition details

• Publisher: VDM Verlag
• Publication date: 2008
• Language: English
• ISBN 10: 3639081773
• ISBN 13: 9783639081770
• Binding: Paperback
• Number of pages: 160