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Low-density parity check codes

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  • Perfect communication with imperfect chips

    Error-correcting codes discovered at MIT can still guarantee reliable communication, even in cellphones with failure-prone low-power chips.

    August 4, 2011
  • Explained: Gallager codes

    In 1993, scientists achieved the maximum rate for data transmission — only to find they’d been scooped 30 years earlier by an MIT grad student.

    January 21, 2010