In 1962, Gallager proposed LDPC codes; in 1996, the work of Mackay and Neal made the research of LDPC codes into a new phase. From then, the great performance of LDPC has been found gradually, and it has been proved that it can construct a kind of code the performance of which can approach Shannon
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Low-density-parity-check codes (LDPC codes) which was put forward by Gallager in the early 1962, silent for many years, inspired by Turbo codes ,it became a hot communication technology again.LDPC codes is a type of linear block codes with very sparse check matrix, and it has wonderful features: capability of approaching the Shannon limit, convenient analyse
(Read More…)
Low-density-parity-check codes (LDPC codes) which was put forward by Gallager in the early 1962, silent for many years, inspired by Turbo codes ,it became a hot communication technology again.LDPC codes is a type of linear block codes with very sparse check matrix, and it has wonderful features: capability of approaching the Shannon limit, convenient analyse
(Read More…)
Low-density-parity-check codes (LDPC codes) which was put forward by Gallager in the early 1962, silent for many years, inspired by Turbo codes ,it became a hot communication technology again.LDPC codes is a type of linear block codes with very sparse check matrix, and it has wonderful features: capability of approaching the Shannon limit, convenient analyse
(Read More…)
Low-density-parity-check codes (LDPC codes) which was put forward by Gallager in the early 1962, silent for many years, inspired by Turbo codes ,it became a hot communication technology again.LDPC codes is a type of linear block codes with very sparse check matrix, and it has wonderful features: capability of approaching the Shannon limit, convenient analyse
(Read More…)
Low-density-parity-check codes (LDPC codes) which was put forward by Gallager in the early 1962, silent for many years, inspired by Turbo codes ,it became a hot communication technology again.LDPC codes is a type of linear block codes with very sparse check matrix, and it has wonderful features: capability of approaching the Shannon limit, convenient analyse
(Read More…)
Low-density-parity-check codes (LDPC codes) which was put forward by Gallager in the early 1962, silent for many years, inspired by Turbo codes ,it became a hot communication technology again.LDPC codes is a type of linear block codes with very sparse check matrix, and it has wonderful features: capability of approaching the Shannon limit, convenient analyse
(Read More…)
Low-density-parity-check codes (LDPC codes) which was put forward by Gallager in the early 1962, silent for many years, inspired by Turbo codes ,it became a hot communication technology again.LDPC codes is a type of linear block codes with very sparse check matrix, and it has wonderful features: capability of approaching the Shannon limit, convenient analyse
(Read More…)
Low-density-parity-check codes (LDPC codes) which was put forward by Gallager in the early 1962, silent for many years, inspired by Turbo codes ,it became a hot communication technology again.LDPC codes is a type of linear block codes with very sparse check matrix, and it has wonderful features: capability of approaching the Shannon limit, convenient analyse
(Read More…)
Redundancy check mechanism takes an important part in disaster recovery system. We use the mechanisms of complete data replication and Redundant Array of Inexpensive Disks(RAID) in the past, but in recent years the application of erasure code in disaster recovery system has caught worldwide attention. Compare with other mechanism, erasure-correcting codes can save more storage
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