Bit Error Rate Estimation For Turbo Decoding
Our analytical and simulation results validate the conclusion. ber = zeros(size(EbNo)); Create a turbo encoder and decoder pair, where the interleaver indices are supplied as input arguments. Discover... M = 16; EbNo = (-5:-1); frmLen = 500; %% % Initialize the bit error rate vector. check my blog
Generated Sun, 02 Oct 2016 06:34:47 GMT by s_hv997 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.9/ Connection turboEnc = comm.TurboEncoder('InterleaverIndicesSource','Input port'); turboDec = comm.TurboDecoder('InterleaverIndicesSource','Input port', ... 'NumIterations',4); %% % Create a QPSK modulator and demodulator pair, where the demodulator outputs % soft bits determined by using a log-likelihood Close × Select Your Country Choose your country to get translated content where available and see local events and offers. Estimate the bit error rate. %% Initialize Simulation % Set the modulation order and the range of Eb/No values to evaluate.
Use of this web site signifies your agreement to the terms and conditions. Please try the request again. The modulator and demodulator objects are normalized to use an average power of 1 W.
I. receivedBits = turboDec(-demodSignal,intrlvrInd); % Calculate the error statistics errorStats = errorRate(data,receivedBits); end % Save the BER data and reset the bit error rate object ber(k) = errorStats(1); reset(errorRate) end %% % In particular, we propose and analyze a novel error rate estimator based on soft output information available as output of receivers with turbo principle. Generated Sun, 02 Oct 2016 06:34:47 GMT by s_hv997 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.10/ Connection
Because the bit mapping from the % demodulator is opposite that expected by the turbo decoder, the % decoder input must use the inverse of demodulated signal. The system returned: (22) Invalid argument The remote host or network may be down. awgnChannel = comm.AWGNChannel('EbNo',EbNo,'BitsPerSymbol',log2(M)); errorRate = comm.ErrorRate; %% Main Processing Loop % The processing loop performs the following steps: % % * Generate random binary data % * Generate random interleaver indices Subscribe Personal Sign In Create Account IEEE Account Change Username/Password Update Address Purchase Details Payment Options Order History View Purchased Documents Profile Information Communications Preferences Profession and Education Technical Interests Need
Index Terms — Soft-output decoding, channel state estimation. GrantAbstractIn this paper a method for on-line estimation of the Bit Error Rate (BER) during turbo decoding process is presented. Join the conversation Cookies help us deliver our services. http://sovidi.com/bit-error/bit-error-rate-and-data-rate-relation.php Generated Sun, 02 Oct 2016 06:34:47 GMT by s_hv997 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.8/ Connection
Please try the request again. M = 16; EbNo = (-5:-1); frmLen = 500; Initialize the bit error rate vector. Please try the request again.
We model the log-likelihood ratios as a mixture of two Gaussian random variables and derive estimators for the mean and variance of these distributions, which can be used to estimate the
Please try the request again. Your cache administrator is webmaster. receivedBits = turboDec(-demodSignal,intrlvrInd); % Calculate the error statistics errorStats = errorRate(data,receivedBits); end % Save the BER data and reset the bit error rate object ber(k) = errorStats(1); reset(errorRate) end Plot the The system returned: (22) Invalid argument The remote host or network may be down.
awgnChannel = comm.AWGNChannel('EbNo',EbNo,'BitsPerSymbol',log2(M)); errorRate = comm.ErrorRate; Main Processing Loop The processing loop performs the following steps: Generate random binary data Generate random interleaver indices Turbo encode the data Apply 16-QAM modulation By MathWorks Explore: Communications System Toolbox Open View Code View in: Documentation Related Examples SER Simulation for OFDM Link Perform a symbol error rate (SER) simulation of an over-the-air OFDM communication Please see www.mathworks.com/trademarks for a list of other trademarks owned by The MathWorks, Inc. It is a great pleasure to present the PWC 2003 technical program.
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