Accelerator IP for WiGig (IEEE 802.11 AD) LDPC Decoder

This IP core implements an optimized Low-Density Parity-Check (LDPC) decoder defined for the IEEE 802.11 ad (WiGig) standard. The core implements fast column message passing (FCMP) decoding which is the fastest-converging LDPC decoding reported so far. The faster convergence enables this implementation to achieve the best-reported energy-efficiency for a WiGig LDPC decoder.

 

The IP core:

  • implements FCMP decoding for the fastest convergence,

  • supports all code rates, 1/2, 5/8, 3/4, and 13/16, 

  • has configurable max-iterations input,
  • and implements early termination to save energy. 

 

Depending on your requirement, the IP-core deliverable may include:

  • System Verilog source code,
  • System Verilog testbench,
  • Synthesized netlist,
  • Matlab or C bit-accurate model for simulation. 
Test-implementation results:
  • Node: 40nm CMOS,
  • Peak Throughput: 8.4 Gbps,
  • Clock Frequency: 200 MHz,
  • Core Area: 1.44 mm2. 
* Implementing the IP using a smaller process node, like 40nm, 28nm, or 22nm,  could further increase its throughput and reduce the area footprint.