Tornado code: Difference between revisions

Revision as of 22:07, 17 January 2007

Revision as of 13:07, 21 February 2007

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In [[computer science]], '''tornado codes''' are a class of [[erasure codes]] that support [[error correctingdetection codeand correction|error-correcting correction]] and have fast encoding and decoding algorithms. Software-based implementations of tornado codes are about 100 times faster on small lengths and about 10,000 times faster on larger lengths than software-based [[Reed-Solomon]] erasure codes while having only slightly worse overhead.

Tornado codes are fixed rate, near optimal erasure correcting codes andthat use sparse bipartite graphs to trade encoding and decoding speed for reception overhead. Since the introduction of Tornado codes, many other similar codes have emerged, most notably [[Online codes]], [[LT codes]] and [[Raptor codes]].

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