Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Simulating an OFDM channel

  1. Oct 16, 2016 #1
    Hi everyone,

    I'm trying to simulate an OFDM following a few steps, and I'm stuck at the first:

    The first step:
    You have a channel with independent zero mean complex Gaussian taps along with exponentially decaying power profile E{|hk|2|}=e-k/3 with k ∈ [0,21]

    First of all, does this notation E{|hk|2|}=e-k/3 mean that "the expected value of the channel gain/s is the variance σ=e-k/3"? And is it σ2 or just σ?

    And also, what are exactly the "taps"?

    Anyway, I assumed the variance σ=e-k/3, so here is my matlab code for the first step:
    Code (Text):

    N=22;
    k=0:21;
    sigma=exp(-k/3);
    h=(rand(N,1)+j*rand(N,1))*sigma;
     
  2. jcsd
  3. Oct 21, 2016 #2
    Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
     
  4. Oct 24, 2016 #3

    Svein

    User Avatar
    Science Advisor

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Simulating an OFDM channel
  1. FDM vs OFDM (Replies: 3)

  2. Vector OFDM? (Replies: 5)

Loading...