OFDM transmission into multipath channel
in [Matlab]
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From: Robert Orzechowski on 31 Jan 2010 13:41 "Bogdan Cristea" <cristeab(a)gmail.com> wrote in message <hccedi$l9r$1(a)fred.mathworks.com>... > I would like to simulate an OFDM transmission into a multipath channel, but I have hit the following problem: > The channel has 4 taps and each tap attenuation is represented by the realization of a Rayleigh process. So only the variance of each tap attenuation is known. How at the receiver side the FFT of the channel impulse response should be computed ? Should I take a mean value for the channel impulse response ? > > If you know some example for OFDM transmission into multipath channel, this could be helpful. Hi, have you found the solution of you problem ? It seems I have the same question. The only difference is I have 11 taps. thanks for the help, Robert
From: Bogdan Cristea on 31 Jan 2010 14:31 "Robert Orzechowski" <orzechowskirobert(a)yahoo.com> wrote in message <hk4iru$mh1$1(a)fred.mathworks.com>... > "Bogdan Cristea" <cristeab(a)gmail.com> wrote in message <hccedi$l9r$1(a)fred.mathworks.com>... > > I would like to simulate an OFDM transmission into a multipath channel, but I have hit the following problem: > > The channel has 4 taps and each tap attenuation is represented by the realization of a Rayleigh process. So only the variance of each tap attenuation is known. How at the receiver side the FFT of the channel impulse response should be computed ? Should I take a mean value for the channel impulse response ? > > > > If you know some example for OFDM transmission into multipath channel, this could be helpful. > > Hi, have you found the solution of you problem ? It seems I have the same question. > The only difference is I have 11 taps. > thanks for the help, > Robert Hi I haven't found a MATLAB example for this situation, but there are some papers treating OFDM transmission in fast varying multipath channels (e.g.Erdal Panayirci, Hakan Dogan and H. Vincent Poor, "A Gibbs Sampling Based MAP Detection Algorithm for OFDM Over Rapidly Varying Mobile Radio Channels") regards Bogdan
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