Low-density Parity-check Codes with Reduced Decoding Complexity - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Low-density Parity-check Codes with Reduced Decoding Complexity write by Benjamin Smith. This book was released on 2007. Low-density Parity-check Codes with Reduced Decoding Complexity available in PDF, EPUB and Kindle. This thesis presents new methods to design low-density parity-check (LDPC) codes with reduced decoding complexity. An accurate measure of iterative decoding complexity is introduced. In conjunction with extrinsic information transfer (EXIT) chart analysis, an efficient optimization program is developed, for which the complexity measure is the objective function, and its utility is demonstrated by designing LDPC codes with reduced decoding complexity. For long block lengths, codes designed by these methods match the performance of threshold-optimized codes, but reduce the decoding complexity by approximately one-third. The performance of LDPC codes is investigated when the decoder is constrained to perform a sub-optimal decoding algorithm. Due to their practical relevance, the focus is on the design of LDPC codes for quantized min-sum decoders. For such a decoder, codes designed for the sum-product algorithm are sub-optimal, and an alternative design strategy is proposed, resulting in gains of more than 0.5 dB.
Resource Efficient LDPC Decoders
Resource Efficient LDPC Decoders - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Resource Efficient LDPC Decoders write by Vikram Arkalgud Chandrasetty. This book was released on 2017-12-05. Resource Efficient LDPC Decoders available in PDF, EPUB and Kindle. This book takes a practical hands-on approach to developing low complexity algorithms and transforming them into working hardware. It follows a complete design approach – from algorithms to hardware architectures - and addresses some of the challenges associated with their design, providing insight into implementing innovative architectures based on low complexity algorithms.The reader will learn: Modern techniques to design, model and analyze low complexity LDPC algorithms as well as their hardware implementation How to reduce computational complexity and power consumption using computer aided design techniques All aspects of the design spectrum from algorithms to hardware implementation and performance trade-offs Provides extensive treatment of LDPC decoding algorithms and hardware implementations Gives a systematic guidance, giving a basic understanding of LDPC codes and decoding algorithms and providing practical skills in implementing efficient LDPC decoders in hardware Companion website containing C-Programs and MATLAB models for simulating the algorithms, and Verilog HDL codes for hardware modeling and synthesis
Low Density Parity Check Code for Next Generation Communication System
Low Density Parity Check Code for Next Generation Communication System - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Low Density Parity Check Code for Next Generation Communication System write by Mayank Ardeshana. This book was released on 2011-12. Low Density Parity Check Code for Next Generation Communication System available in PDF, EPUB and Kindle. Channel coding provides the means of patterning signals so as to reduce their energy or bandwidth consumption for a given error performance. LDPC codes have been shown to have good error correcting performance which enables efficient and reliable communication. LDPC codes have linear decoding complexity but performance approaching close to shannon capacity with iterative probabilistic decoding algorithm. In this dissertation, the performance of different error correcting code such as convolution, Reed Solomon(RS), hamming, block code are evaluated based on different parameters like code rate, bit error rate (BER), Eb/No, complexity, coding gain and compare with LDPC code. In general, message passing algorithm and the sum-product algorithm are used to decode the message. We showed that logarithmic sum-product algorithm with long block length code reduces multiplication to addition by introducing logarithmic likelihood ratio so that it achieves the highest BER performance among all the decoding algorithms. The astonishing performance combined with proposed modified MS decoding algorithm make these codes very attractive for the next generations digital broadcasting system (ABS - S).
Pseudo-random Construction and Reduced Complexity Decoding for Low Density Parity Check Codes
Pseudo-random Construction and Reduced Complexity Decoding for Low Density Parity Check Codes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Pseudo-random Construction and Reduced Complexity Decoding for Low Density Parity Check Codes write by Abhiram Prabhakar. This book was released on 2001. Pseudo-random Construction and Reduced Complexity Decoding for Low Density Parity Check Codes available in PDF, EPUB and Kindle.
Reduced Complexity Decoding Algorithms for Low-density Parity Check Codes and Turbo Codes
Reduced Complexity Decoding Algorithms for Low-density Parity Check Codes and Turbo Codes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Reduced Complexity Decoding Algorithms for Low-density Parity Check Codes and Turbo Codes write by Chen Jinghu. This book was released on 2003. Reduced Complexity Decoding Algorithms for Low-density Parity Check Codes and Turbo Codes available in PDF, EPUB and Kindle.
