Journal ArticleDOI
Low-Latency Reweighted Belief Propagation Decoding for LDPC Codes
Jingjing Liu,R.C. de Lamare +1 more
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TLDR
Simulation results show that the VFAP-BP algorithm outperforms the standard BP algorithm, and requires a significantly smaller number of iterations when decoding either general or commercial LDPC codes.Abstract:
In this paper we propose a novel message passing algorithm which exploits the existence of short cycles to obtain performance gains by reweighting the factor graph. The proposed decoding algorithm is called variable factor appearance probability belief propagation (VFAP-BP) algorithm and is suitable for wireless communications applications with low-latency and short blocks. Simulation results show that the VFAP-BP algorithm outperforms the standard BP algorithm, and requires a significantly smaller number of iterations when decoding either general or commercial LDPC codes.read more
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Study of Non-Uniform Channel Polarization and Design of Polar Codes with Arbitrary Rates
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R. B. di Renna,R.C. de Lamare +1 more
TL;DR: In this article, a message-scheduling generalized approximate message passing (MSGAMP) algorithm is proposed to address the problem of joint active device detection and channel estimation in an uplink grant-free massive MIMO system scenario.
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Repeat Accumulate Based Designs for LDPC Codes on Fading Channels
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Study of Design of Rate-Compatible Polar Codes Based on Non-Uniform Channel Polarization.
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A survey on active noise control techniques -- Part II: Nonlinear systems
TL;DR: In this paper, the authors reviewed the development of the linear active noise control (ANC) technique in the past decade and highlighted recent advances of NLANC algorithms, such as spline ANC algorithms, kernel adaptive filters, and nonlinear distributed ANC algorithms.
References
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Journal ArticleDOI
A recursive approach to low complexity codes
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Near Shannon limit performance of low density parity check codes
TL;DR: The authors report the empirical performance of Gallager's low density parity check codes on Gaussian channels, showing that performance substantially better than that of standard convolutional and concatenated codes can be achieved.
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A new class of upper bounds on the log partition function
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Journal ArticleDOI
Selective avoidance of cycles in irregular LDPC code construction
TL;DR: A Viterbi-like algorithm is proposed that selectively avoids small cycle clusters that are isolated from the rest of the graph and yields codes with error floors that are orders of magnitude below those of random codes with very small degradation in capacity-approaching capability.
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