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US20130166987 LDPC (Low Density Parity Check) codes with corresponding parity check matrices selectively constructed with CSI (Cyclic Shifted Identity) and null sub-matrices  
LDPC (Low Density Parity Check) codes with corresponding parity check matrices selectively constructed with CSI (Cyclic Shifted Identity) and null sub-matrices. An LDPC matrix corresponding to an...
US20130246885 Method and Apparatus for Decoding Low-Density Parity-Check Codes  
A method and an apparatus for decoding low-density parity-check codes are provided. A first decoding unit performs decoding computation on a first code word from a second time period to an Oth...
US20120278679 Iterating Inner and Outer Codes for Data Recovery  
A storage medium includes at least one data unit defining a plurality of symbol-based inner code words and a plurality of symbol-based outer code words. Each symbol included in one of the inner...
US20150194985 ENCODING DEVICE AND METHOD FOR GENERATING MESSAGE MATRIX  
A method for arranging a plurality of message blocks in a lattice form and generating a message matrix includes deciding lengths of rows of the message matrix such that a length difference is...
US20120260144 ENCODING AND DECODING TECHNIQUES USING LOW-DENSITY PARITY CHECK CODES  
Some embodiments include apparatus and methods for encoding message information. Such apparatus and methods can include using a parity check matrix of a low-density parity check (LDPC) code to...
US20130086445 Quasi-Cyclic Low-Density Parity-Check Codes  
A system and a method for determining a quasi-cyclic (QC) low-density parity-check (LDPC) code, such that the QC LDPC code has no trapping sets are disclosed. A set of matrices representing a...
US20140181616 SYSTEM AND METHOD FOR IMPLEMENTING MULTIPLE FEC ENCODING PROFILES  
Systems and methods for FEC encoding, for example for 10GEPON are provided. For the upstream or downstream, multiple FEC encoding and decoding profiles are implemented that include various levels...
US20150200686 ENCODING DEVICE, DECODING DEVICE, AND OPERATING METHOD THEREOF  
An encoding device includes a first encoder that generates a message matrix including a plurality of message blocks and a parity block having parity information of the plurality of message blocks,...
US20150006992 METHOD AND DECODER FOR PROCESSING DECODING  
Embodiments of the present invention provide a method and a decoder for processing decoding. The method includes: acquiring a combined generator matrix Gcom of a Turbo code generator matrix Gturbo...
US20120210190 ENCODING AND DECODING USING ELASTIC CODES WITH FLEXIBLE SOURCE BLOCK MAPPING  
Data can be encoded by assigning source symbols to base blocks, assigning base blocks to source blocks and encoding each source block into encoding symbols, where at least one pair of source...
US20150143195 Encoding and decoding using constrained interleaving  
Serially-concatenated codes are formed in accordance with the present invention using a constrained interleaver. The constrained interleaver cause the minimum distance of the serial concatenated...
US20150039963 Encoding and decoding using constrained interleaving  
Serially-concatenated codes are formed in accordance with the present invention using a constrained interleaver. The constrained interleaver cause the minimum distance of the serial concatenated...
US20120060071 PRODUCT CODE DECODING METHOD AND DEVICE  
A method for a decoding device to decode a codeword matrix of a product code includes: generating a first extended parity check matrix for a vertical code; decoding a horizontal codeword of a...
US20130346824 DYNAMICALLY CONTROLLING THE NUMBER OF LOCAL ITERATIONS IN AN ITERATIVE DECODER  
An iterative decoder dynamically controls the number of local iterations of error-correction decoding performed for each global iteration of channel detection. In so doing, the iterative decoder...
US20140006896 COMBINED KOETTER-VARDY AND CHASE DECODING OF CYCLIC CODES  
An apparatus having a first circuit and a second circuit is disclosed. The first circuit may be configured to generate (i) a plurality of symbols and (ii) a plurality of decision values both in...
US20120173951 ERROR CORRECTION CODE BLOCK HAVING DUAL-SYNDROME GENERATOR, METHOD THEREOF, AND SYSTEM HAVING SAME  
An error correction code block including dual-syndrome generators, which may process a plurality of successive code word without latency, is configured to calculate syndrome values of a...
US20130305114 Symbol Flipping LDPC Decoding System  
Various embodiments of the present inventions provide a symbol flipping LDPC decoding system. For example, a symbol flipping data processing system is disclosed that includes a low density parity...
US20130219241 METHOD FOR STOPPING ITERATION IN AN ITERATIVE TURBO DECODER AND AN ITERATIVE TURBO DECODER  
The present document discloses a method for stopping iteration in an iterative Turbo decoder and an iterative Turbo decoder. Hard decisions from the two convolutional decoders of the iterative...
US20150033095 BUFFER MANAGEMENT IN A TURBO EQUALIZATION SYSTEM  
A plurality of partially-decoded codewords that have been processed at least once by a first and a second error correction decoder is stored. A plurality of metrics associated with how close a...
US20150249471 METHOD FOR EARLY TERMINATING DECODING PROCESSES OF SERIAL CONCATENATED CODING AND DECODER USING THE SAME  
A method and decoder for early terminating decoding processes of serial concatenated coding are disclosed. The method includes the steps of providing a codeword, encoded by a first coding and a...
US20110126077 COOPERATIVE TRANSMISSION METHOD AND COMMUNICATION SYSTEM USING THE SAME  
A cooperative transmission method includes: a first operation of coding, by a source node, a message desired to be transmitted according to a first encoding scheme to generate a first codeword and...
US20110099454 Low Complexity LDPC Encoding Algorithm  
A method of encoding a binary source message u, by calculating x:=Au, calculating y:=B′x, resolving the equation Dp=y for p, and incorporating u and p to produce an encoded binary message v, where...
US20150106675 Systems and Methods for Multi-Algorithm Concatenation Encoding and Decoding  
Systems and method relating generally to data processing, and more particularly to systems and methods for encoding and decoding information.
US20120216093 SOFT-DECISION NON-BINARY LDPC CODING FOR ULTRA-LONG-HAUL OPTICAL TRANSOCEANIC TRANSMISSIONS  
Methods and systems for soft-decision non-binary low-density parity-check (LDPC) coding for ultra-long-haul optical transoceanic transmissions are provided. A receiver includes one or more maximum...
US20150214984 METHOD FOR CORRECTING ERROR OF IMPERFECT ENTANGLED QUBIT IN RECEIVER  
Provided is an EA-CWS quantum error correction code for correcting an error on imperfect entangled qubits, and a method for correcting an error using entangled qubits snared between a sender and a...
US20110252286 NON-BINARY LDPC CODE DECODER  
The present disclosure relates generally to data decoding, and more particularly to non-binary iterative decoders. Non-binary LDPC codes and LDPC decoders that may be used to decode non-binary...
US20110258511 AUTOMATIC ERROR CONTROL SCHEME SELECTION FOR FIXED-LENGTH MESSAGES BASED UPON MESSAGE PAYLOAD SIZE  
A communication system enabling wireless transmission of messages via packets; and a method of operating the system provides for improved accuracy in the transmission of a message, particularly...
US20110083055 DECODING METHOD FOR RAPTOR CODES USING SYSTEM  
The present invention relates to a decoding method for a raptor codes using system, which is capable of improving performance of the system and limiting increase in the amount of computation by...
US20130191696 PARITY FRAME  
A method of forward error correction in an optical communications system. A signal to be transmitted is logically defined as a super-frame comprising a plurality of frames including a parity frame...
US20150033094 WINDOW-STOPPED METHOD FOR APPLYING TO TURBO DECODING  
A window-stopped method for applying to turbo decoding is disclosed, and proceeds a window detection to decoding information via a window-based detector and detects and records a convergent...
US20140129898 EVALUATION OF PERFORMANCE CHARACTERISTICS OF A READ CHANNEL  
A machine-based method for modifying a parity-check matrix in a manner that controllably and quantifiably raises the corresponding error-floor level and/or rate of miscorrection to make these...
US20090089643 TURBO DECODER AND ITERATION STOPPING METHOD THEREOF  
A turbo decoder includes first and second interleavers, a de-interleaver, first and second component decoders and a stop judging circuit. The first and second component decoders respectively...
US20080115031 COMMUNICATION SIGNAL DECODING  
Provided are systems, methods and techniques that use an embedded error-detection code within a received communication signal to determine when to stop iterative decoding of the communication signal.
US20120047415 REVERSE CONCATENATED ENCODING AND DECODING  
Methods and systems for transmitting and receiving data include reverse concatenated encoding and decoding. Reverse concatenated decoding includes inner decoding the encoded stream with an inner...
US20100223524 Forward Error Correction Decoding Avoidance Based on Predicted Code Block Reliability  
A method and device for performing forward error (FEC) correction avoidance based upon predicted block code reliability in a communications device is provided. An avoidance unit comprising a...
US20150249470 COMBINED BLOCK-STYLE ERROR CORRECTION  
In a method for coding information using a coding scheme, a horizontal code is selected. Additionally, a matrix is selected. Encoding information symbols into an array based upon the selected...
US20120030536 Initializing Decoding Metrics  
A method includes, during a first iteration of a first decoder for decoding convolutionally encoded data elements, determining a first value of a first path metric. The method also includes,...
US20110214031 ERROR CORRECTION DECODER, ERROR CORRECTION VALUE GENERATOR, AND ERROR CORRECTION SYSTEM  
An error correction decoder includes a syndrome generator and an error correction value generator. The syndrome generator is operable to generate a plurality of syndromes based upon a received...
US20110264982 Method for transmitting and receiving signalling information  
A method for protecting signalling information in a frame to be transmitted to a receiver in a communication system, comprising: encoding frame signalling information of the frame to protect the...
US20080086674 Reduced complexity ARP (almost regular permutation) interleaves providing flexible granularity and parallelism adaptable to any possible turbo code block size  
Reduced complexity ARP (almost regular permutation) interleaves providing flexible granularity and parallelism adaptable to any possible turbo code block size. A novel means is presented by which...
US20080133997 Turbo decoder employing ARP (almost regular permutation) interleave and inverse thereof as de-interleave  
Turbo decoder employing ARP (almost regular permutation) interleave and inverse thereof as de-interleave. A novel means is presented herein by which a common module can perform both ARP...
US20140317466 COMMUNICATION DEVICE, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM  
A device receives reception packets including information packets that contains information symbols and check packets that contains check symbols and divides each packet into a plurality of...
US20110161776 COMPRESS-FORWARD CODING WITH N-PSK MODULATION FOR THE HALF-DUPLEX GAUSSIAN RELAY CHANNEL  
Systems and methods that implement compress-forward (CF) coding with N-PSK modulation for the relay channel are disclosed, where N is greater than or equal to two. In the CF scheme, Wyner-Ziv...
US20130318417 Modification of Error Statistics Behind Equalizer to Improve Inter-Working with Different FEC codes  
This invention relates to a receiver circuit which comprises an equalizer (27) and an error decorrelator (25). The error decorrelator being configured for changing (501; 601, 602) the position of...
US20150188574 DECODER FOR LDPC CODE AND BCH CODE AND DECODING METHOD THEREOF  
A decoder for A LDPC code and A BCH code and decoding method thereof are provided. The decoder decodes the encoded data based on the LDPC code and the BCH code simultaneously. Then the decoder...
US20090249163 ITERATIVE DECODING OF CONCATENATED LOW-DENSITY PARITY-CHECK CODES  
Techniques to perform iterative decoding of concatenated low-density parity-check codes (LDPC) are described. Iterative decoding of the concatenated code is achieved by performing T common...
US20120210187 DUAL REED-MULLER (RM) CODE SEGMENTATION FOR UPLINK CONTROL INFORMATION (UCI)  
A method for reporting uplink control information (UCI) on a user equipment (UE) is described. It is determined a number of bits in a sequence of bits for transmission is greater than 11 and less...
US20060156171 Combining spectral shaping with turbo coding in a channel coding system  
A method of combining spectral shaping with turbo coding in a channel coding system. The method comprises encoding user data with spectrally shaped encoding to provide a suppressed DC user data...
US20080115032 Efficient almost regular permutation (ARP) interleaver and method  
A method for operating an ARP interleaver is provided that includes generating each of a plurality of interleaved indices, P(j), as a function of an adjacent interleaved index. For one embodiment,...
US20130254621 ERROR DETECTION CODE GENERATING METHOD AND ERROR DETECTION CODE GENERATOR  
In a mobile communication system, an error detection code or a quality frame indicator (e.g., CRC) is generated using selectively frame information, and at least one of a WCA identifier of another...