Avaliant LDPC Validation Service

Avaliant presents a high-throughput, flexible, and cost-effective LDPC Validation service.  The service allows the user to measure the performance of an LDPC code at astonishingly low error rate.  LDPC Validator has quick turnaround time because it was designed to seamlessly take advantage of a massively parallel General Purpose Graphics Processor (GPU) architecture.  The LDPC Validation service currently supports the following parameters:

  • LDPC Code Structure: H parity matrix (regular, irregular, punctured, shortened, varying block size) and G matrix
  • LDPC Decoder Parameters: number of iterations, exact or approximate Log-Likelihood Ratio (LLR)
  • Modulation (DOCSIS 3.1):  BPSK, QPSK, 8QAM, 16QAM, 32QAM, 64QAM

 The Avaliant LDPC validation service outputs bit error rate, block error rate, and average iterations per signal-to-noise ratio (SNR).  The service has been validated using known LDPC standards including 802.11ad, 802.16, and DVB-S2.  The Avaliant LDPC Validation tool has been used by a large aerospace company.


The interface process between Avaliant and the customer is illustrated in the Table below.  Click on the link AVALIANT PRODUCT SHEET to obtain additional information about the LDPC Validation Service.  Click on the link CUSTOMER LDPC INFO SHEET to obtain the list of LDPC parameters Avaliant needs in order to determine the cost of service, and turn-around time.  If you are interested in the LDPC Validation service, please contact us at ldpc@avaliant.com or call Bob Bagshaw at 425-644-7210 extension 21 for more information.