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  2. Error detection and correction - Wikipedia

    en.wikipedia.org/wiki/Error_detection_and_correction

    All error-detection and correction schemes add some redundancy (i.e., some extra data) to a message, which receivers can use to check consistency of the delivered message and to recover data that has been determined to be corrupted.

  3. Data link layer - Wikipedia

    en.wikipedia.org/wiki/Data_link_layer

    The data link layer provides the functional and procedural means to transfer data between network entities and may also provide the means to detect and possibly correct errors that can occur in the physical layer. The data link layer is concerned with local delivery of frames between nodes on the same

  4. Error correction code - Wikipedia

    en.wikipedia.org/wiki/Error_correction_code

    Low-density parity-check (LDPC) codes are a class of highly efficient linear block codes made from many single parity check (SPC) codes. They can provide performance very close to the channel capacity (the theoretical maximum) using an iterated soft-decision decoding approach, at linear time complexity in terms of their block length.

  5. Frame check sequence - Wikipedia

    en.wikipedia.org/wiki/Frame_check_sequence

    By far the most popular FCS algorithm is a cyclic redundancy check (CRC), used in Ethernet and other IEEE 802 protocols with 32 bits, in X.25 with 16 or 32 bits, in HDLC with 16 or 32 bits, in Frame Relay with 16 bits, [3] in Point-to-Point Protocol (PPP) with 16 or 32 bits, and in other data link layer protocols.

  6. Hybrid automatic repeat request - Wikipedia

    en.wikipedia.org/wiki/Hybrid_automatic_repeat...

    When the coded data block is received, the receiver first decodes the error-correction code. If the channel quality is good enough, all transmission errors should be correctable, and the receiver can obtain the correct data block.

  7. Coding theory - Wikipedia

    en.wikipedia.org/wiki/Coding_theory

    This typically involves the removal of redundancy and the correction or detection of errors in the transmitted data. There are four types of coding: [ 1 ] Data compression (or source coding )

  8. Automatic repeat request - Wikipedia

    en.wikipedia.org/wiki/Automatic_repeat_request

    Automatic repeat request (ARQ), also known as automatic repeat query, is an error-control method for data transmission that uses acknowledgements (messages sent by the receiver indicating that it has correctly received a message) and timeouts (specified periods of time allowed to elapse before an acknowledgment is to be received) to achieve ...

  9. Category:Error detection and correction - Wikipedia

    en.wikipedia.org/wiki/Category:Error_detection...

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