Results 51 to 60 of about 6,933 (191)
Design of LDPC Codes: A Survey and New Results [PDF]
, 2006 This survey paper provides fundamentals in the design of LDPC codes. To provide a target for the code designer, we first summarize the EXIT chart technique for determining (near-)optimal degree distributions for LDPC code ensembles.
Ryan, William E. +11 more
core +2 more sources
Low Density Parity Check Code (LDPC Codes) Overview
CoRR, 2020 This paper basically expresses the core fundamentals and brief overview of the research of R. G. GALLAGER [1] on Low-Density Parity-Check (LDPC) codes and various parameters related to LDPC codes like, encoding and decoding of LDPC codes, code rate, parity check matrix, tanner graph.
Saumya Borwankar, Dhruv Shah
openaire +2 more sources
Symbol-Flipping Based Decoding of Generalized Low-Density Parity-Check Coded Constructed over GF(q) [PDF]
, 2006 An efficient symbol-flipping based decoding algorithm designed for nonbinary Generalized Low-Density Parity-Check (GLDPC) codes is proposed. By extending the concept of the Weighted Bit Flip Voting (WBFV) algorithm designed for binary Hamming-code based ...
Kuo, F-C., Hanzo, L.
core
Channel code division multiple access and its multilevel structured LDPC based instantiation [PDF]
, 2008 In this paper, we introduce and outline the concept of Channel Code Division Multiple Access (CCDMA) using a design example based on the recently proposed Multilevel Structured (MLS) LDPC codes. We succeeded in making the memory requirements of the multi-
Sheng Chen +9 more
core +1 more source
Cyclic Low Density Parity Check Codes With the Optimum Burst Error Correcting Capability
IEEE Access, 2020 The paper presents a new scheme of cyclic codes suitable for the correction of burst errors. This is accomplished by the proper definition of their parity check polynomials in which the difference between orders of every two consecutive elements of the ...
Sina Vafi
doaj +1 more source
Beam Search Decoder for Quantum Low-Density Parity-Check Codes
PRX QuantumWe propose a decoder for quantum low-density parity-check (LDPC) codes based on a beam search heuristic guided by belief propagation (BP). Our beam search decoder applies to all quantum LDPC codes and achieves different speed-accuracy tradeoffs by tuning
Min Ye, Dave Wecker, Nicolas Delfosse
doaj +1 more source
Reconfigurable rateless codes [PDF]
, 2009 We propose novel reconfigurable rateless codes, that are capable of not only varying the block length but also adaptively modify their encoding strategy by incrementally adjusting their degree distribution according to the prevalent channel conditions ...
Sheng Chen +7 more
core +1 more source
Iterative decoding of generalized low-density parity-check codes [PDF]
, 1998 A generalization of Gallager's low-density parity-check codes is introduced, where as component codes single-error correcting Hamming codes are used instead of single-error detecting parity-check codes.
Zigangirov, Kamil, Lentmaier, Michael
core +3 more sources
Entropy, 2016 Spatially coupled low-density parity-check (LDPC) codes have attracted considerable attention due to their promising performance. Recursive encoding of the codes with low delay and low complexity has been proposed in the literature but with constraints ...
Zhongwei Si, Sijie Wang, Junyang Ma
doaj +1 more source
Equivalent-Capacity-Based Design of Space-Time Block-Coded Sphere-Packing-Aided Multilevel Coding [PDF]
, 2007 A multilevel coding (MLC) scheme invoking sphere packing (SP) modulation combined with space time block coding (STBC) is designed. The coding rates of each of the MLC component codes are determined using the so-called equivalent capacity based ...
Ng, S.X. +7 more
core +1 more source