Reduced-complexity local switch based multi-mode QC-LDPC decoder architecture for Gbit wireless communication

A low-complexity low-power multi-mode quasi-cycle low-density parity check decoder architecture for 60-GHz Gbit wireless communication is presented. A novel, dynamic column shifting scheme is introduced for a multi-mode architecture that provides a low complexity and fixed throughput across all rates. Novel low-complexity local switch architecture and its control values are described to implement the dynamic shifting scheme. Post-layout results show that the proposed architecture has low power consumption at high throughputs. It reduces about 57% memory and 31% area requirement compared to previously reported architecture.