To enable this property, run MATLAB in interpreted mode.Output Arguments collapse all Y— Decoded codewords matrix Decoded codewords, returned as a matrix with K rows that represent the decoded bits for llr(1:K,:). K equals the NumInformationBits property of the input decodercfg. For the ...
LDPC(Low Density Parity Check Code)码是一种性能优异的线性分组码,其性能非常接近于Shannon极限且具有很强的纠错能力。但自LDPC码被发明以来就存在一个阻碍其发展的巨大障碍。众所周知,一般的线性分组码是通过其生成矩阵实现编码。而LDPC码的校验矩阵虽然是稀疏的,但生成矩阵却不是稀疏矩阵。由于LDPC码的编码长度都...
is to develop a model for LDPC codes using simulation in Matrix laboratory language (MATLAB) on which BER calculations is carried out and to evaluate the performance, for different Eb/N0 levels, by varying the code-length, column weight, number of iterations, code-rate of the LDPC code.Jas...
Based on studying the basic theory of LDPC codes,the impact of codes length, column weight and iteration times on BER performance of LDPC codes are demonstrated by computer simulation and theoretical analysis。The simulation experiment indicated that: LDPC codes long—code error performance is superior...
从验证结果中可以看出,两种译码方法得到的误码率只有很小的差异,这种差异主要来源于消息量化精度的不同。采用Matlab仿真时,消息的量化精度为0.1,而本文设计的译码器消息的量化精度为0.062 5。因此说明图3中的差异是合理的,本文设计的译码器是正确的。 本文提出了一种针对IEEE 802.16e标准、基于层译码算法的灵活、高效...
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C/C++ Code Generation Generate C and C++ code using MATLAB® Coder™. Version HistoryIntroduced in R2012a expand all R2023b: To be removed comm.LDPCEncoder will be removed. Use ldpcEncode instead. To specify the LDPC code applied by the ldpcEncode function, use the configuration object re...
5、e performance of the simulation based on MATLAB about LDPC codes. The main areas have been identified: LDPC codes construction; LDPC codes encoding; LDPC code decoder implementations. Throughout the design and process, achieve the performance of LDPC code analysis and draw relevant conclusions. ...
LDPC MATLAB simulation using BPSK + AWGN modulation decoded using Sum Product and Min Sum Algorithm simulationdecodermatlabmatrixberldpc-codessum-productldpcawgnforward-error-correctionbpskbit-error-ratesftgaussian-noiseawgn-channelcyclic-codessum-product-algorithmbpsk-modulationminimum-sum ...
Then analyzed in detail of the traditional coding algorithms and efficient coding algorithm based on lower triangle. After that conducted a number o 6、f encoding triangular transformation using the Matlab simulation. the simulation results observed SNR and BER line graph, draw a conclusion. When ...