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15 Threads found on Ber Curves
soft means temporary error after defined number of retries such as 4 or 16 etc.. hard means permanent error after defined number of retries and depending on system may or may not include error correction. ber vs SNR curves shows probability of an error. Thus the length of the message affects message error rate which ca
hai there, im verifiying my QPSK architecture and quit confuse on whether to choose SNR or Eb/No in the AWGN block. is there any difference between SNR and Eb/No to obtain ber? what is the difference if there are?
Hi, I am simulating the fading effect of multipath in wireless communications. I am using a contributed model in opnet the model ID- 418, Any one used this before can you please answer my questions 1.I am getting a very high spike for an instance for the nearest node why it is so? 2. how can see the SNR and ber curves, which i cannot see now when
Dear all, I want to interface system level results (C/I) to link level results (Frame Erasure Rates), so I need some mapping tables and statistical link level results/ curves for GSM link level performance (ber vs. C/I and FER vs. ber). Does anybody have link level mapping tables ? Thanks.
I want to simulate spread spectrum techniques and other coding techniques like cdma and get their ber to SNR curves in presence of jammers or other interfering signals.I want to test jammers of different specifications and test that if my transmitter and reciever are location "x" distance apart then how would be the transmission.. Can any body r
Hi there, I am studying how bad is demodulation in case of not having a real match filter as the first block in the reception of the signal. do you know where could I find curves which take into account this error in the filter?? The only curve I found is the teoretical one and I guess, its behaviour is not the same Thanks in advance!!
Hi , I implement an OFDM System with Simulink , by regular search i found that sent one , but when i run it to get ber Vs EbNo , it get high curves and values rather than expected to be. i use QPSK as modulation technique , so as i know the ber curve of OFDM must be the same as QPSK system , is that true , and if, what is the wrong in (...)
Hi, Can some one tell me what kinds of information we can get from ber curves? I know it puts bit error rate against signal power, but I see so many research papers where for e.g. cdma is compared against ofdma by just showing graphs but don't really tell the significance of comparison. thanks It depends on th
I am trying to mimic the results in this paper, thus I expect the curves of MMSE and ZF equalizaiton to be worse than AWGN, while better than no equalization at all. However the tests I ran didnt make sense. here is the graph and scripts.. THanks in advance.
u need to get the ber curves and know the minimum SNR at the demodulator , and from the SNR , u can calculate the noise figure , of the system , by knowing the noise floor which depends on the channel BW khouly
Can anyone plz tell me or fwd me some literature on viterbi equilizer. I would appriciate if they also give some SNR vs ber curves. Thanks.
hi , does anyone have the simulation results for WCDMA downlink .... any results or curves are welcomed (like ber ,spectrum ...etc )
Any help will be useful Thanks
EYECALC is an easy to use behavioral eye diagram simulator from EECALC. Free 30 day trial download. Features: * Dual Dirac capability, Pre-emphasis, Custom eye masks * ber calculation, Bathtub curves, Slicer level/phase, Jitter pp estimation * Impulse response, Mag, Group Delay * Export to Excel, Save to Clipboard, Save to Image Link: w
The higher(Better) the SNR the Better the ber. You need know the type of modulation to be used, Bandwidth, the noise of the system etc... Look up "Link Budget", Sensitivity (Equation), Eb/No curves, and ber curves. SNR is one variable of several that determine what the likelihood of receiving Correct data is. (...)