Recent content by singhofmpl

  1. S

    Complex Integral to find pdf of user in CDMA system

    Hi everybody while trying to find the pdf of user in CDMA, I got stuck up with an integral, which is given below: \int_0^1\frac{1}{x (\ln x)^{\frac{n-1}{n}}\sqrt{y^2-x^2}}dx where y is a constant and n is an integer. Please help me to solve this integral.
  2. S

    Integral of an involved exponential

    Homework Statement I have problem solving an integral equation of the form Homework Equations \int_{0}^{\infty}(a\Lambda^2/(\Gamma(\gamma-\Lambda)^2))exp(\Lambda\gamma/(\Gamma(\gamma-\Lambda))-(\gamma-b)/c)d\gamma The Attempt at a Solution I have tried to solve it by...
  3. S

    Solving Complex Integral: Power Amplifier & Multicarrier Signal

    Thanks for your prompt response. I think I'm left with no option but to apply numerical methods. I have one more problem if you can give me some direction to solve it. The integral is given below...
  4. S

    Integral of squared error function

    Integral due to non-linearity of PA Hi Ragib While modeling the non-linear behavior of power amplifier (PA), I came to an integral of the form given below; I'm not able to figure out how to solve it...
  5. S

    Solving Complex Integral: Power Amplifier & Multicarrier Signal

    I'm studying the non-linearity effect of power amplifier on multicarrier signal. While modeling the behavior of power amplifier I came across the following integral; I'm not able to figure out how to solve it...
  6. S

    Complex Integral Homework: Solve Analytically

    Homework Statement I'm studying the non-linear effect of power amplifier on multicarrier siganl. I have come across an complex integral which is given below, but not able to figure out how to solve it analytically.Homework Equations...
  7. S

    Expectation of terms in double summation

    Dear Sir Thanks a lot for your prompt response. After your comment now I've got the confirmation of my answer. Thanks a lot once again.
  8. S

    Expectation of terms in double summation

    Yes I want to take the time average of the said expression. Its not part of any assignment. I came across this equation while deriving PAPR for the QAM OFDM signal. It does not involve any integral.
  9. S

    Expectation of terms in double summation

    Does anybody help me how to find the average (expectation) of terms involving double summation? Here is the equation which I'm trying solve. [\tex]E\Big[2\sum_{k=0}^{N-2}\sum_{j=k+1}^{N-1}f(k,j)\cos[2\pi(j-k)t-\theta_{k,j}]\Big][\tex] where f(k,j) and [\tex]\theta_{k,j}[\tex] are some...
  10. S

    Integral of squared error function

    Dear Sir May I know your affiliation (if you don't mind) so that I can mention it while writing my report or paper?
  11. S

    Integral of squared error function

    Dear Sir Thanks a lot for your prompt response. I'm really very sorry for bothering you so much. Finally I got the solution following your advice. The final answer which I'm getting is given below: \frac{2\sqrt{2}\arctan(\frac{1}{\sqrt{2}})}{\pi} Please let me know whether my answer is...
  12. S

    Integral of squared error function

    Respected Sir I'm sorry to say bet still there is problem. Please see my workings given below: \int_{0}^{\infty}\mbox{erf}^2(\sqrt{x})\exp(-x)dx let u=\mbox{erf}^2(\sqrt{x}) Now du=\frac{2\mbox{erf}(\sqrt{x})\exp(-x)}{\sqrt{\pi}\sqrt{x}}dx Now it is required to write \exp(-x)dx in terms...
  13. S

    Integral of squared error function

    Dear Sir Your suggestion is very much correct as far as applying by parts is concerned but I'm able to get analytical results only if the integral involves only one power of the error function i.e \int_{0}^{\infty}\mbox{erf}(\sqrt{x})\exp(-x)dx but I'm not able to get the correcr results for...
  14. S

    Integral of squared error function

    Does anybody knows how to solve the following equation? \int_{0}^{\infty}\mbox{erf}^2(\sqrt{x})\exp(-x)dx Please help. regards singhofmpl
Back
Top