Flexible-rate polar decoder-based communication systems and methods

Abstract

A method for decoding polar codes based encoded data comprises receiving the polar codes based encoded data, determining a rate at which the data is encoded, based on the determined rate, selecting suitable implemented super nodes in a flexible-rate polar decoder, and decoding the polar codes based encoded data. A flexible-rate polar decoder is created by receiving polar codes corresponding to a set of desired overheads, generating, for each overhead, a binary tree using fast successive cancellation decoding, generating a unified binary tree by determining locations of super nodes within each binary tree, representing the determined locations having same node index among different binary trees as super locations in the unified binary tree, each super location including more than one super node, and implementing the unified binary tree on an application specific hardware structure to create the flexible-rate polar decoder.

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