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Recent content by ahmeddeia

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    Chow and Kaneko adaptive thresholding matlab code ??

    Salam alikom all how are you?? I hope you are all fine well, I need a matlab code for Chow and Kaneko adaptive thresholding for Image segmentation that is used in image processing please help me thanks in advance Salam alikom
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    Sorted QR Decomposition

    Salam alikom all Do anyone here have any tutorial to explain the Sorted QR Decomposition algorithm ?? thanks in advance salam alikom
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    problem in GF(2^8) multiplication using matlab

    salam alikom you will find a matlab command called cirshift or something like that, I don't remember. However this will help you to make shift rows in AES thanks, Salam alikom
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    MIMO MMSE receiver ????

    Salam alikom all well my question is why in the MMSE equation for H matrix is G = (H' * H + 1/(10^(0.1*snr_ratio))*eye(N)) \ H'; in some references as in MIMO book of Andrea Goldsmith and it is G = (H' * H + Nt/(10^(0.1*snr))*Nt*eye(N)) \ H'; in other references as in matlab help, where...
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    bit error rate curves for spatial multiplexing dual polarized MIMO ?

    salam alikom all I just want to find any thesis, paper, or any tutorial that shows bit error rate curves for spatial multiplexing dual polarized MIMO for different cross polarization discrimination (XPD) parameters as I searched for them, but I didn't find any thing can you please give me or...
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    XPIC help please ????

    salam alikom all please really I need help in this issue, I need a simple alogrithm for the cross polarization interference canceller (XPIC) thanks in advance salam alikom
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    XPIC help please ????

    salam alikom all how are you?? I hope you are fine well I want to know about the cross-polarization interference canceller (XPIC), so do you have any tutorial to simply explain the basic idea of the XPIC?? how does it operates ?? thanks in advance, Salam alikom
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    question concerning antenna polarization ???

    salam alikom all if we assume that I have perfect cross polarization which mean the power from Tx horizontally polarized antenna is transferred completely to Rx vertically polarized antenna?? can we really have this case?? or it is only an ideal case? as it gives me the best performance when...
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    help for Eb/No for MIMO???

    salam alikom all I just want to know , what the relation between SNR and Eb/No in case of MIMO spatial multiplexing?? assuming that Es/No=SNR in ratio not dB is it as follows: Eb/No_dB= SNR_dB-10*log10(number_bits_per_symbol)-10*log10(number_TX_antennas) ??? for uncoded system also please...
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    Questions concerning MIMO polarization techniques ??

    Salam alikom all h r u?? I hope u r all fine well, I just want to know what is the difference between cross-polarization discrimination (XPD), and the polarization parallelity?? as both - as I think so - concerns with that how much different polarizations such as the V polarization and H...
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    [SOLVED] BER Result For MC CDMA (OFDM-CDMA)

    salam alikom Ammar 1-for the first picture, ok do 10 run each of 500 times (or blocks or iterations) as an example, then take them on average i.e. BER_mean= mean( all BER values in 500 vectors in all runs) , thus semilogy (Eb/no, BER_mean) 2-for the second picture, run on more number of bits...
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    Single polarized and Dual polarized MIMO in LOS enviroment ??, pls help

    Salam alikom all can please tell me the difference between sepatially separated single polarized (SS-SP) MIMO and dual polarized (DP) MIMO ??? also can u please give a good tutorial to explain these points ?? thanks in advance salam alikom
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    Single polarized and Dual polarized MIMO ??, pls help

    Salam alikom all can please tell me the difference between sepatially separated single polarized (SS-SP) MIMO and dual polarized (DP) MIMO ??? also can u please give a good tutorial to explain these points ?? thanks in advance salam alikom
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    [SOLVED] MIMO-OFDM help please ??

    Salam alikom H r u all?? I hope u r fine, well I just need a good tutorial concerning MIMO-OFDM techniques as here we use MIMO for spatial multiplexing as in LTE, also I want to know how we will send our signal?? 4 samples each time, if we are using 4x4 MIMO ?right?? and do we wait to...
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    2x2,3x3,4x4 MIMO ML or sphere decoder performance ???

    Salam alikom I wanted to the answer for Spatial multiplexing techniques not Diversity ones as ML,SD,ZF receivers thanks, Salam alikom
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