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Recent content by GRIFINA

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    zero forcing for equalization channel estimated with long preamble

    Hello all I confuse about apply zero forcing equalization if I have a wlan mimo system And my signal reference for channel estimation using long training field or long preamble, thx,anybody could explain to me? please,its urgent, Thanks
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    Urgent,please help me about covariance matrix pf channel

    I have a formula about covariance matrix of channel like: Ch = diag{ E[abs(h1)²] E[abs(h2)²] .... E[abs(h(Δ)² } Δ in here mean number of channel impulse response, And I want ask to all of you about change this formula into matlab ,can anybody explain this, coz Iam very confuse about the sign...
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    Expectation in Matlab

    I have a formula about covariance matrix of channel like: Ch = diag{ E[abs(h1)²] E[abs(h2)²] .... E[abs(h(Δ)² } Δ in here mean number of channel impulse response, And I want ask to all of you about change this formula into matlab ,can anybody explain this, coz Iam very confuse about the sign...
  4. G

    Can explain this formula,yhanks before:)

    I have a formula about covariance matrix of channel like: Ch = diag{ E[abs(h1)²] E[abs(h2)²] .... E[abs(h(Δ)² } Δ in here mean number of channel impulse response, And I want ask to all of you about change this formula into matlab ,can anybody...
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    Mean square error (MSE) in MIMO channel

    I have MIMO 2X2 and I apply any methods of channel estimation , but Iam confuse about calculate the mean square error (MSE) for my channel estimated and original channel if my system using MIMO,can anyone give me a suggestion for calculate the MSE? Please I need your help so much,thanks :)
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    How to calculate this?

    I have formula like A = E[hh^H] in word expetation h = channel multiplicate with h degree hermitian ,please anyone can elaborate this formula in matlab programming. Note h is channel matrix size 1x16. Thank you
  7. G

    change matrix in matlab

    thank you zorro,your post very helpfull:)
  8. G

    change matrix in matlab

    I have matrix size 2x108x2,and i want convert this matrix to 2x2x108 with matlab program, Anyone can help me? Thanks
  9. G

    about BER in mimo wlan system

    Hello all I have a mimo WLAN system , and i have a problem to making the system with good performance in BER coz my system have an error so high, could anyone explain about anything that could cause the results BER were very bad? Thanks
  10. G

    Long training symbol in WLAN 802.11n for channel estimation

    do you know to create the long training symbol in WLAN ,NikhilAD?
  11. G

    Truncated singular value decomposition (svd) for channel estimation

    please help me,, fully thankss
  12. G

    Long training symbol in WLAN 802.11n for channel estimation

    Thank you yura:smile: sorry,do u have passion with WLAN?if yes, i want ask or sharing via email. could you give your email?thank you before
  13. G

    Long training symbol in WLAN 802.11n for channel estimation

    thank you yura as your reply ,but do you know how to create HT-LTF ? because i want aplly some methode like truncated singular value decomposition to HT-LTF to repair the performance system of WLAN.
  14. G

    Long training symbol in WLAN 802.11n for channel estimation

    Hi all, please help me,i so confused about long training field or long training symbols in WLAN 802.11n for channel estimation, could you explain me about that? or any references can recommended for me? fully thanks
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    Truncated singular value decomposition (svd) for channel estimation

    Hello all, I want ask you about do you know about training symbol for channel estimation in MIMO, i work for my final project in mimo wlan especially 802.11n ,and then i have project about channel estimation using truncated SVD. The truncated SVD applied on training symbol or we can say long...
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