Low-Complexity LDPC Decoder for 5G URLLC Jian-Cheng Liu, Huan-Chun Wang, Chung-An Shen, and Jih-Wei Lee Department of Electronic and Computer Engineering National Taiwan University of Science and Technology, Ta
[3] XIAO Peng,GOTO S.Implementation of LDPC decoder for 802.16e.IEEE 8th International Conference on ASIC(ASICON′09),2009:501-504. [4] OH D,KESHAB K.Parhi.Low-complexity switch network for reconfigurable LDPC decoders.IEEE Transactions on Very Large Scale Integration(VLSI) Systems,2010,18(1...
A minimum mean squared error criterion of LDPC Layered BP decoding algorithm by constructing linear equations to approximate calculation formula check node BP algorithm to reduce the complexity of the algorithm, and uses a minimum mean squared error criterion to obtain the optimal solution of linear ...
[2]Gallager, Robert G.Low-Density Parity-Check Codes. Cambridge, MA: MIT Press, 1963. [3]Hocevar, D.E. "A reduced complexity decoder architecture via layered decoding of LDPC codes." InIEEE Workshop on Signal Processing Systems, 2004. SIPS 2004, 107-112.https://doi.org/10.1109/SIPS.20...
Comparison results show that the proposed decoding architecture has the advantage of low complexity and high throughput. Key words : LDPC decoder;60 GHz;simultaneous two-layer iteration;high throughput 0 引言 60 GHz毫米波无线通信技术不仅拥有数吉比特的传输速率,也拥有着良好的抗干扰性以及高安全性的特点...
与先前所述相同,分层BP译码不仅在计算复杂度上低于BP译码,且在性能方面也优于BP译码0.25 dB,而本文为了降低分层BP译码的复杂度提出的分层最小和译码的性能与前者有0.35 dB的差距,为了弥补这部分性能损失,对后续引入的NLMS与OLMS两种译码进行仿真,可以看出其性能表现与LBP译码相差不大。因此可以得出结论,正如传统BP译码...
与先前所述相同,分层BP译码不仅在计算复杂度上低于BP译码,且在性能方面也优于BP译码0.25 dB,而本文为了降低分层BP译码的复杂度提出的分层最小和译码的性能与前者有0.35 dB的差距,为了弥补这部分性能损失,对后续引入的NLMS与OLMS两种译码进行仿真,可以看出其性能...
LDPC码有多种译码算法,其中最常用的算法是基于软判决的置信度传播译码算法(Belief Propagation,BP)。BP算法有着良好的性能,但是因为浮点运算的存在导致实现复杂。为了减少实现复杂度,基于BP算法Fossorier对其中的双曲双切函数及反双曲双切函数进行了简化,提出了最小和算法(Min-Sum Algorithm,MSA)[4]。
[3]Hocevar, D.E. "A reduced complexity decoder architecture via layered decoding of LDPC codes." InIEEE Workshop on Signal Processing Systems, 2004. SIPS 2004, 107-112.https://doi.org/10.1109/SIPS.2004.1363033. [4]Chen, Jinghu, R.M. Tanner, C. Jones, and Yan Li. "Improved min-sum...
低密度奇偶校验(LDPC,Low-DensityParity-Check)码的剩余度置信度传播(RBP,ResidualBelief-Propagation)和基于行的剩余度置信度传播(NWRBP,Node-WiseRBP)解码算法的性能提升非常有限且计算复杂度较高.提出改进的RBP(ERBP,EnhancedRBP)算法,在一个子迭代中,仅更新一个消息,然后设置被更新消息所在行的所有节点的剩余度值...