{ "item_title" : "Timing Recovery and Carrier Synchronization Using LDPC Codes", "item_author" : [" Esteban Luis Valles "], "item_description" : "This book provides techniques for symbol tracking and carrier acquisition in a Low-Density Parity-Check (LDPC) coded transmission. In traditional receiver architectures, acquisition and tracking are performed using phase-lock techniques that are independent of the channel-code decoding process. In burst reception scenarios, bandwidth inefficient piloting must often be embedded in a transmission in order to accelerate acquisition to aid symbol time tracking at low signal-to-noise ratios. In this book we show that outputs from an iterative decoder can be used to improve the estimation of symbol frequency and phase in either a pilotless environment or complementing available pilot information. We describe a method capable of handling very large offsets with complexity that grows linearly with the maximum offset size. Combining information from the set of parity-check equations of a LDPC code observations with a properly calibrated phase locked loop allows successful tracking in very high noise scenarios. The problem of carrier frequency estimation under these high noise conditions is also addressed.", "item_img_path" : "https://covers3.booksamillion.com/covers/bam/3/63/908/177/3639081773_b.jpg", "price_data" : { "retail_price" : "63.72", "online_price" : "63.72", "our_price" : "63.72", "club_price" : "63.72", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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