linear block code

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• Space–time block code — This article deals with coherent space–time block codes (STBCs). For differential space–time block codes, see differential space–time codes.Space–time block coding is a technique used in wireless communications to transmit multiple copies of a… …   Wikipedia

• Linear code — In mathematics and information theory, a linear code is an important type of block code used in error correction and detection schemes. Linear codes allow for more efficient encoding and decoding algorithms than other codes (cf. syndrome… …   Wikipedia

• Cyclic code — In coding theory, cyclic codes are linear block error correcting codes that have convenient algebraic structures for efficient error detection and correction. Contents 1 Definition 2 Algebraic structure 3 Examples …   Wikipedia

• Concatenated error correction code — In coding theory, concatenated codes form a class of error correcting codes that are derived by combining an inner code and an outer code. They were conceived in 1966 by Dave Forney as a solution to the problem of finding a code that has both… …   Wikipedia

• Linear programming — (LP, or linear optimization) is a mathematical method for determining a way to achieve the best outcome (such as maximum profit or lowest cost) in a given mathematical model for some list of requirements represented as linear relationships.… …   Wikipedia

• Block cipher — In cryptography, a block cipher is a symmetric key cipher operating on fixed length groups of bits, called blocks, with an unvarying transformation. A block cipher encryption algorithm might take (for example) a 128 bit block of plaintext as… …   Wikipedia

• Block cipher modes of operation — This article is about cryptography. For method of operating , see modus operandi. In cryptography, modes of operation is the procedure of enabling the repeated and secure use of a block cipher under a single key.[1][2] A block cipher by itself… …   Wikipedia

• Code 93 — Barcode Als Strichcode, Balkencode oder Barcode (engl. bar für Balken) wird eine optoelektronisch lesbare Schrift bezeichnet, die aus verschieden breiten, parallelen Strichen und Lücken besteht. Der Begriff Code steht hierbei nicht für… …   Deutsch Wikipedia

• Code point — Not to be confused with Point code. In character encoding terminology, a code point or code position is any of the numerical values that make up the code space (or code page).[1] For example, ASCII comprises 128 code points in the range 0hex to… …   Wikipedia

• Group code — In computer science, group codes are a type of code. Group codes consist of n linear block codes which are subgroups of G^n, where G is a finite Abelian group.A systematic group code C is a code over G^n of order left| G ight|^k defined by n k… …   Wikipedia

• Binary Golay code — In mathematics and computer science, a binary Golay code is a type of error correcting code used in digital communications. The binary Golay code, along with the ternary Golay code, has a particularly deep and interesting connection to the theory …   Wikipedia