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  2. Binary erasure channel - Wikipedia

    en.wikipedia.org/wiki/Binary_erasure_channel

    A binary erasure channel with erasure probability is a channel with binary input, ternary output, and probability of erasure . That is, let X {\displaystyle X} be the transmitted random variable with alphabet { 0 , 1 } {\displaystyle \{0,1\}} .

  3. Low-density parity-check code - Wikipedia

    en.wikipedia.org/wiki/Low-density_parity-check_code

    In contrast, belief propagation on the binary erasure channel is particularly simple where it consists of iterative constraint satisfaction. For example, consider that the valid codeword, 101011, from the example above, is transmitted across a binary erasure channel and received with the first and fourth bit erased to yield ?01?11.

  4. Erasure code - Wikipedia

    en.wikipedia.org/wiki/Erasure_code

    Erasure Coding; While technically RAID can be seen as a kind of erasure code, [5] "RAID" is generally applied to an array attached to a single host computer (which is a single point of failure), while "erasure coding" generally implies multiple hosts, [3] sometimes called a Redundant Array of Inexpensive Servers (RAIS). The erasure code allows ...

  5. Binary symmetric channel - Wikipedia

    en.wikipedia.org/wiki/Binary_symmetric_channel

    A binary symmetric channel (or BSC p) is a common communications channel model used in coding theory and information theory. In this model, a transmitter wishes to send a bit (a zero or a one), and the receiver will receive a bit.

  6. EXIT chart - Wikipedia

    en.wikipedia.org/wiki/EXIT_chart

    A key assumption is that the messages to and from an element of the decoder can be described by a single number, the extrinsic information. This is true when decoding codes from a binary erasure channel but otherwise the messages are often samples from a Gaussian distribution with the correct extrinsic information. The other key assumption is ...

  7. Error correction code - Wikipedia

    en.wikipedia.org/wiki/Error_correction_code

    Linear Network Coding, a type of erasure correcting code across networks instead of point-to-point links; Long code; Low-density parity-check code, also known as Gallager code, as the archetype for sparse graph codes; LT code, which is a near-optimal rateless erasure correcting code (Fountain code) m of n codes

  8. 18 celebrities who don't identify as either male or female - AOL

    www.aol.com/18-celebrities-dont-identify-either...

    These Hollywood stars have opened up about not fitting into a strictly "male" or "female" category. Demi Lovato, Sam Smith, Janelle Monáe, and Emma D'Arcy all identify as nonbinary.

  9. Channel capacity - Wikipedia

    en.wikipedia.org/wiki/Channel_capacity

    For some other channels, it is characterized through constant-size optimization problems such as the binary erasure channel with a no-consecutive-ones input constraint [17], NOST channel [18]. The basic mathematical model for a communication system is the following: Communication with feedback