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Efficient Pruning for Successive-Cancellation Decoding of Polar Codes

Author:
Yoo, Hoyoung  Park, In-Cheol  


Journal:
IEEE COMMUNICATIONS LETTERS


Issue Date:
2016


Abstract(summary):

This letter presents an efficient pruning method for the successive-cancellation (SC) decoding of polar codes. In the proposed method, unnecessary sub-trees are pruned if the syndrome check of a constituent code is satisfied. Without sacrificing the error-rate performance, the recursive operation associated with such a constituent code is replaced with simple computations. Compared with the traditional SC decoding, the proposed pruning decreases the decoding latency by 85% on the average for the polar (1024, 512) code.


Page:
2362---2365


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