Results 31 to 40 of about 182,933 (316)
Optimal Generalized Quasi-Polycyclic Codes over
MathematicsThis paper develops a structural and constructive theory of right generalized quasi-polycyclic (GQPC) codes over the finite chain ring R=Fq+uFq with u2=0, extending the existing field-based GQPC framework to a ring-theoretic setting.
Sami H. Saif, Shayea Aldossari
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On Tight Optimal Conflict-Avoiding Codes for 3, 4, 5 and 6 Active Users
Cybernetics and Information Technologies, 2018 We classify tight optimal conflict-avoiding codes of weights 3, 4, 5 and 6 and given small lengths.
Baicheva Tsonka, Topalova Svetlana
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An Embedding Strategy Using Q-Ary Convolutional Codes for Large and Small Payloads
Mathematics, 2021 Matrix embedding (ME) code is a commonly used steganography technique, which uses linear block codes to improve embedding efficiency. However, its main disadvantage is the inability to perform maximum likelihood decoding due to the high complexity of ...
Jyun-Jie Wang +4 more
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On the number of optimal index codes
2015 IEEE International Symposium on Information Theory (ISIT), 2015 In Index coding there is a single sender with multiple messages and multiple receivers each wanting a different set of messages and knowing a different set of messages a priori. The Index Coding problem is to identify the minimum number of transmissions (optimal length) to be made so that all receivers can decode their wanted messages using the ...
R. Kavitha, B. Sundar Rajan
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Optimal ternary cyclic codes with minimum distance four and five [PDF]
, 2014 Cyclic codes are an important subclass of linear codes and have wide applications in data storage systems, communication systems and consumer electronics. In this paper, two families of optimal ternary cyclic codes are presented.
Ding, Cunsheng +4 more
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FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Optimal Prefix Free Codes with Partial Sorting
Algorithms, 2019 We describe an algorithm computing an optimal prefix free code for n unsorted positive weights in time within O ( n ( 1 + lg α ) ) ⊆ O ( n lg n ) , where the alternation α ∈ [ 1 . .
Jérémy Barbay
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Constructions of Binary Locally Repairable Codes With Multiple Recovering Sets
IEEE Access, 2021 Locally repairable codes (LRCs) with multiple recovering sets are highly demanded in distributed storage systems. In this letter, we generalize the construction of WZL code proposed by Wang et al.
Jiaming Teng, Lingfei Jin
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Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Design of LDPC Codes: A Survey and New Results
, 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
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