Now showing items 1-7 of 7

  • HIGH THROUGHPUT, PARALLEL, SCALABLE LDPC ENCODER/DECODER ARCHITECTURE FOR OFDM SYSTEMS 

    Sun, Yang; Karkooti, Marjan; Cavallaro, Joseph R. (2006-10-01)
    This paper presents a high throughput, parallel, scalable and irregular LDPC coding and decoding system hardware implementation that supports twelve combinations of block lengths 648, 1296, 1944 bits and code rates 1/2, ...
  • High-Throughput Multi-rate LDPC Decoder based on Architecture-Oriented Parity Check Matrices 

    Radosavljevic, Predrag; de Baynast, Alexandre; Karkooti, Marjan; Cavallaro, Joseph R. (2006-09-01)
    A high throughput pipelined LDPC decoder that supports multiple code rates and codeword sizes is proposed. In order to increase memory throughput, irregular block structured parity-check matrices are designed with the ...
  • LDPC Code Design for OFDM Channel: Graph Connectivity and Information Bits Positioning 

    de Baynast, Alexandre; Sabharwal, Ashutosh; Aazhang, Behnaam (2005-07-01)
    We present an optimized channel coding scheme for OFDM transmission. In the future wireless standards such IEEE 802.11n, frame error rates (FER) as low as 0.0001 are targeting. Irregular LDPC codes have excellent performance ...
  • Multi-Rate High-Throughput LDPC Decoder: Tradeoff Analysis between Decoding Throughput and Area 

    Radosavljevic, Predrag; de Baynast, Alexandre; Karkooti, Marjan; Cavallaro, Joseph R. (2006-09-01)
    In order to achieve high decoding throughput (hundreds of MBits/sec and above) for multiple code rates and moderate codeword lengths (up to 2.5K bits), several decoder solutions with different levels of processing parallelism ...
  • Optimized Message Passing Schedules for LDPC Decoding 

    Radosavljevic, Predrag; de Baynast, Alexandre; Cavallaro, Joseph R. (2005-11-01)
    The major drawback of the LDPC codes versus the turbo-codes is their comparative low convergence speed: 25-30 iterations vs. 8-10 iterations for turbo-codes. Recently, Hocevar showed by simulations that the convergence ...
  • Optimized Message Passing Schedules for LDPC Decoding 

    Radosavljevic, Predrag; de Baynast, Alexandre; Cavallaro, Joseph R. (2005-11-01)
    The major drawback of the LDPC codes versus the turbo-codes is their comparative low convergence speed: 25-30 iterations vs. 8-10 iterations for turbo-codes. Recently, Hocevar showed by simulations that the convergence ...
  • UNIFIED DECODER ARCHITECTURE FOR LDPC/TURBO CODES 

    Sun, Yang; Cavallaro, Joseph R. (2008-10-01)
    Low-density parity-check (LDPC) codes on par with convolutional turbo codes (CTC) are two of the most powerful error correction codes known to perform very close to the Shannon limit. However, their different code structures ...