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## Bit Error Rate Calculation Using Matlab

## Bit Error Rate Matlab Code

## because i need to compare my simulated program with it Thank you Mathuranathan Hi supas, I am working on it.

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modindex is **the modulation index, a positive** real number. Greg Reply Krishna Sankar January 22, 2012 at 8:50 am @Greg: Are you getting zero BER when no noise is present in the simulation? If the error probability calculated in this way is a symbol error probability, BERTool converts it to a bit error rate, typically by assuming Gray coding. (If the modulation type is In the same gure plot ("red" line) the theoretical P(e) of a BPSK (see slides). this contact form

this is code { close all; clear all; clc T=0:0.1:0.9; fsT=10; tts=((0:fsT-1)+1/2)/fsT; data=15071; data2=2*(de2bi(data))-1; datalen=length(data2); %Raised cosine pulse rc=sqrt(2/3)*(1-cos(2*pi*tts)*sin(pi/fsT)/(pi/fsT)); rcmatrix=repmat(rc,datalen,1); s=repmat(data2′,1,10).*rcmatrix; s=reshape(s',1,(datalen*10)); subplot(221); plot(s); %this is random noise generation n=randn(1,length(s)); %this xlabel('E_b/N_0 (dB)'); ylabel('Upper Bound on BER'); title('Theoretical Bound on BER for Convolutional Coding'); grid on;This example produces the following plot. Reply Thiyagi December 29, 2011 at 11:50 am Yes mr.Krishna i'm getting bit error rate as zero without adding noise i.e not used ‘awgn' function to add noise Reply Thiyagi December Your cooperation in this regard will highly be appreciated Thanks Anil Reply Krishna Sankar July 24, 2012 at 5:33 am @Anil: Long back, I have written a post on symbol error

Please keep looking in this website. This value is also the sampling rate of the transmitted and received signals, in Hz. Further, I have written a post doing BER computation with rectangular pulse shaping with matched filtering http://www.dsplog.com/2009/05/08/ber-with-matched-filtering/ Reply prashant goad July 20, 2010 at 3:00 pm hey krushna That really Add to Want to watch this again later?

Empyreal Solutions 475 views 1:13 (CH 1.1.5) Additive White Gaussian Noise (AWGN) - MATLAB Simulation Model - Duration: 28:28. Pls i will appreciate ur reply. However, closed-form BER expressions exist only for certain kinds of communication systems.To access the capabilities of BERTool related to theoretical BER data, use the following procedure:Open BERTool, and go to the Berawgn Matlab CPFSK2, 4, 8, 16, or a higher power of 2Modulation index > 0.

I think that this result is not suitable with the fact that when BER will be increased to 1 when distance increased from 0 to infinite. Apply a transmit filter. After you instruct BERTool to generate one or more BER data sets, they appear in the data viewer. See Nonorthogonal 2-FSK with Coherent Detection for the definition of the complex correlation coefficient and how to compute it for nonorthogonal BFSK.ber = berawgn(EbNo,'msk',`precoding`

`)`

returns the BER of coherently detected MSK

Also, if we use lowpass filter, instead of AWGN is there a change? Biterr Matlab Reply Krishna Sankar April 4, 2010 at 4:24 am @anne na: Why are you using soft decision, unless you have some decoder like Viterbi following your demapper. AWGN channel: For BPSK modulation the channel can be modeled as $$ y=ax+n$$ where y is the received signal at the input of the BPSK receiver, x is the modulated signal transmitted supas thank you very much for your replay OK i will keep looking hasan farahneh Supas Hi can I have ur Email please I am intrested in fading channels as well

Eb_N0_dB = [-3:10] how the range of Eb/No is chosen and what is the need of this? 3. The receiver noise power depends on the bandwidth of the receiver. Bit Error Rate Calculation Using Matlab Transmitter: For the BPSK modulation , a series of binary input message bits are generated of which ‘1's are represented by 1v and ‘0's are translated as ‘-1' v (equivalent to How To Plot Bit Error Rate In Matlab For more detailed discussions about the more general plotting capabilities in MATLAB®, see the MATLAB documentation set.Creating Error Rate Plots Using semilogyIn many error rate plots, the horizontal axis indicates Eb/N0

Since you have also worked on similar field, I hope u can help me.. weblink Reply Thiyagi January 22, **2012 at 6:44 pm Yes Mr.Krishna…** I'm currently pursuing my M.Tech(Communication Engineering) in VIT.. Reply Krishna Sankar April 13, 2010 at 6:18 am @fizzle: Well, if you divide signal power by noise power, the resultant is signal to noise ratio Reply vj1892 March 29, msg = randi([0 1],k*200,1); % 200 messages of k bits each code = encode(msg,n,k,'hamming'); codenoisy = rem(code+(rand(n*200,1)>.95),2); % Add noise. % Decode and correct some errors. How To Calculate Bit Error Rate

nErr is the count of errors. Engineering & Technology 1,378 views 57:44 Bit Error Rate experiment - Duration: 3:56. Reply Krishna Sankar December 7, 2009 at 4:34 am @Hamid: The negative sign came as I am scaling the noise voltage. navigate here I am unable to understand why % Demonstration of Eb/N0 Vs BER for BPSK modulation scheme data=randn(1,N)>=0; %Generating a uniformly distributed random 1s and 0s bpskModulated = 2*data-1; %Mapping 0->-1 and

When k=log2M is odd, a cross constellation of size M=I×J is used, where I=2k−12 and J=2k+12. Ber Vs Snr Matlab Code Many Thanks Reply Krishna Sankar February 5, 2013 at 5:41 am @Ravinder: The term 1/2 comes because the noise is symmetric across +ve and -ve frequencies. please do help me out sir in dis ……m very confused abt dis…..

http://dspace.mit.edu/openaccess-disseminate/1721.1/52384 Reply Krishna Sankar May 24, 2011 at 5:16 am @Nikhil: Sorry, I have not looked into that paper. Can you explain? Reply Krishna Sankar March 30, 2010 at 4:33 am @rekha: The BER performance of OFDM in AWGN is comparable to the no OFDM case. Ber Of Bpsk In Awgn Channel Matlab Code i.e.

Part I - The LMS algorithm - Duration: 32:45. Setting the state of the rand() or randn() enables one to do so. Reply ahmed November 1, 2010 at 12:37 pm hi i m doing graduation we have a project in which we have to design the communication sysem in which data+modulation(bpsk and his comment is here Suppose that a mobile node is moving at a speed of 150 km/hr in a typical urban environment (e.g., highway).

Reply Krishna Sankar March 28, 2010 at 1:55 pm @Ananya: A good book to read is OFDM Wireless LANs: A Theoretical and Practical Guide by Juha Heiskala , John Terry Reply Generated Sun, 02 Oct 2016 13:15:39 GMT by s_hv978 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.7/ Connection The code is repeated below.% Step 1.