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TTCN: A new approach for low-power split-row LDPC decoders | IEEE Conference Publication | IEEE Xplore

TTCN: A new approach for low-power split-row LDPC decoders


Abstract:

Split-Row technique is proved to be one of the most effective methods to reduce the routing complexity of fully-parallel LDPC decoders. This technique is based on the ide...Show More

Abstract:

Split-Row technique is proved to be one of the most effective methods to reduce the routing complexity of fully-parallel LDPC decoders. This technique is based on the idea of splitting each check node processor to multiple smaller processors. This paper introduces a new method, to increase the power-efficiency of Split-Row LDPC decoders. The proposed method is called trust to the truthful check node (TTCN), enabling the decoder to only depend on a portion of check node processors at specific decoding iterations. This leads to an average reduction of 30%-40% in the check node dynamic power consumption. This is achieved by means of trust to a minority of check node processors and gating the others. In fact, a great side effect of the proposed method is also a slight improvement in the error performance.
Date of Conference: 24-27 May 2015
Date Added to IEEE Xplore: 30 July 2015
Electronic ISBN:978-1-4799-8391-9

ISSN Information:

Conference Location: Lisbon, Portugal

References

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