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Recent content by mahdieh79

  1. M

    Optimization functions combinations

    Hi, i have two functions named 1> F1(t) >0, Thr> F2(t)>0, they are nonlinear and 0<t<1. my goal is to maximize F1 and minimize F2 , simultanausly as much as possible! It is a trade off, but i don't know how I can combine these functions? would you please help me, it's very important...
  2. M

    802.11e EDCA parameters changing in OPNET!

    Dear all Hi I want to assign some new values to EDCA parameters(CWmin, Txop, ...) in 802.11e rather than opnet defaults. but I dont know how I can do it in OPNET. would you please help? thanks in advanced
  3. M

    changing the CWmin in 802.11e in simulation with opnet

    Dear all Hi I want to assign a new value to the CWmin(Minimum Contention Windows ) in 802.11e rather than opnet defaults. but I dont know how I can do it in OPNET. would you please help? thanks in advanced
  4. M

    Numerical Analysis 802.11(e)

    All Dears Hi I read some papers that model the 802.11(e) mac layer using markov chain and they obtain some fotmula for throughput and delay . after that, they use some numerical analysis to validate their models. But unfortunately, they didn't explain the numerical methods and their way to...
  5. M

    Simple Matlab question

    Hi i=1; a=[0 0 1 2 3] s=size(a) b=[a(i+1:s(2)), a(i)]
  6. M

    Numerical analysis of Mac layer

    All Dears Hi I read some papers that model the 802.11(e) mac layer using markov chain and they obtain some fotmula for throughput and delay . after that, they use some numerical analysis to validate their models. But unfortunately, they didn't explain the numerical methods and their way to...
  7. M

    hot topics in wireless networks

    Hi would you please introduce the hot topics in wireless networks? Regards
  8. M

    please guide me(ph.d thesis subject)

    Dear all Hi I'm a phd candidate, I want research on wireless networks, mimo , qos , lte , .. for my thesis, would you please introduce me some new and orginal subjects for a phd thesis? beforehand, i'm thankful you. kind regards
  9. M

    help about phd thesis subject

    phd thesis subject Dear all Hi I'm a phd candidate, I want research on wireless networks, mimo , qos , lte , .. for my thesis, would you please introduce me some new and orginal subjects for a phd thesis? beforehand, i'm thankful you. kind regards
  10. M

    What are the differences between signal assignments and variable assignments in VHDL?

    Re: VHDL Hi <= is for signal assignment, but := is for variable assignment.
  11. M

    refrences about quality of service(QoS) in MIMo systems

    MIMO Qos Hi Would you please introduce me some refrences about quality of service(QoS) in MIMo systems ? tanx alot.
  12. M

    wireless communication books

    hi
  13. M

    request for soulution manual

    Hi, would you please send me these solution manuals : 1. Wireless Communications (Andrea Goldsmith) 2. Data and Computer Communications (8th Ed., William Stallings) my email : mgk708@yahoo.com bests
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