Flexible design and implementation of QC-Based LDPC decoder architecture for on-line user-defined matrix downloading and efficient decoding

Abstract

This paper proposes a flexible QC-LDPC decoder to support on-line matrix downloading. Its applications include IEEE 802.16e, 802.11n/ac/ax, and other advanced standards. Via TSMC 40-nm technology, the flexible architecture only has an area of 0.415 mm2. The according power dissipation is 84.68 mW at maximal clock frequency of 1.0 GHz. It is successfully verified with 3 LDPC codes pre-defined in IEEE 802.11n/ac/ax.