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78 Threads found on Ber Performance
Hi, i m trying to simulate DS-cdma ber performance using MATLAB for multiusers. My problem is that "pskmod" function only accepts positive values from 0-M and in DS-CDMA when adding different spreaded codes i get some negative values that cant be given to "pskmod" e.g. " -1 1 1 -1 1 -1 -1..." So, how can i pass the spreaded code
Hello dear friends, I should simulate a wideband M-ary FSK system with an LDI (limiter discriminator integrator) receiver in order to analyze its performance and obtain the relationship between ber and SNR in rayleigh fading channels . This project should be done with MATLAB. I am not sure if it is possible to use simulink for simulation wide
umm... there is no code only a graph. Here is what might have gone wrong. 1) less number of samples transmitted (monte carlo requires a good number for accuracy) 2) noise not generated properly Also, I don't find the graph to be funny
Could you help me : How calculate ber far from Shannon Limit ???? "Bit-Error Rate (ber) performance that is within ????? db of the Shannon Limit"? and how calculate gab of degree distribution from the shannon limit ? the degree distributions from LDPC codes, which have performance gap from the Shannon (...)
... Does it mean that both non-ofdm and ofdm system has the same ber performance in AWGN? In fact, OFDM would have worse performance since you transmitting extra bits as CP Can you explain, please?
BPSK with Power Amplifiers or perfect timing, you will add a frequency offset to the received signal and determine performance in the presence of AWGN for SNR values of 20, 10, 5, 0 dB. The idea is to sweep the frequency range from 0 to fMAX which is the frequency at which ber is at or near 50%. Perform this task in small frequency increments
How pskmod.m works? I mean QPSK is supposed to make two bits as input and output one symbol. But when I use pskmod(,4), the length of the answer remains same i.e. 8 and not 4 I wonder if this is going to affect the ber performance of QPSK in Matlab I know the solution too that I can use reshape and blah blah blah, but I wa
Which scenario is better, relay near destination node or source node in terms of ber. Using ber simulation results I am getting better performance when relay is near destination. Comments Plz!!
Why is SIMO ber performance is better than MISO? tx
Dear all, I'm currently doing my bachelor's degree final year project entitled MIMO system exploiting partial channel and signal information. I've simulated an estimated channel based on the Least Squared method through a pilot symbol. The receiver has the estimated channel. The ber performance would undoubtedly be worse in the estimated chann
Hi all, I am working on the performance analysis of Time Hopping - BPSK systems. Can anybody post the Matlab code for its implementation and ber vs. SNR analysis. Thanks.
I dont have the coe but try for ber performance of error correction codes or simply search it in google, you'll find what you want
hello please can someone tell me about snr or eb/no in MIMO OFDM, for example i want to compare the performance (ber vs snr) of direct channel ofdm with 2x1 stbc-ofdm. how to make it comparable. cheers!
HI Dear : Have u any idea about ber performance of QPSK in AWGN for matlab Regards mak
Hello everyone, recently I am building a OOK transceiver system in simulink to simulate the ber performance under different AWGN channel SNR. The following is a brief of my system: 1) Digital baseband signal is a 10-bit 2Gb/s binary pseudo-random sequence; Carrier (center) frequency is 40GHz with -10dBm signal power. 2) The above two
Bit-Error Rate is the number of bit errors divided by all transferred bits in a second. Normally you measure it on a communication link (radio or optical) by using a PRBS generator as a data source on the transmitter side and a berT on a receiver side.
why FER and PER are used in specifications of WLAN802.11a/b why not ber(which is specified for bluetooth)
From section 4.4 of the Bluetooth specification, the reference sensitivity performance, ber = 0.1%, shall be met under the following conditions: - The wanted signal at frequency fo with a power level 6 dB over the reference sensitivity level (-85dBm + 6dB = -79dBm). - A static sine wave signal at f1 with a power level of ?39 dBm - A Bluetooth mo
I have done the MIMO simulations to see the performances of ber vs SNR with increased NB of antennas with different receivers(matched filter, decorrelator, MIMO and MIMO-SIC), I have submitted the plots below, whether anyone can check whether they look like normal or not. If not, what I should still improve. The below figures are done in high SNR r
Hi You are rigth, for ber requirement, the SNR after processing gain is considered. But for example the ber in BPSK-DSSS after processing is equal to ber in BPSK system with the same SNR.