More gentle introduction in this (free to download) text book: http://www.inference.phy.cam.ac.uk/mackay/itila/book.html http://www.inference.phy.cam.ac.uk/mack

More gentle introduction in this (free to download) text book: http://www.inference.phy.cam.ac.uk/mackay/itila/book.html http://www.inference.phy.cam.ac.uk/mackay/itila/book.html — it’s by one of the authors responsible for rediscovering Gallager codes