Comments on: Rayleigh multipath channel model

By: Krishna Sankar

Krishna Sankar — Mon, 06 Feb 2012 00:17:20 +0000

@tejashree: Sorry, I do not have Matlab installed

By: tejashree

tejashree — Tue, 31 Jan 2012 08:38:38 +0000

HELLO SIR,
i am trying to use ”rayleighchan” inbuilt function in matlab 7.11,but it gives me following error… Undefined function or method ‘channel.rayleigh’ for input arguments of type ‘double’.

Error in ==> rayleighchan at 116
chan = channel.rayleigh(varargin{:});

actually i want to construct one doppler object….for that i need this rayleighchan function…..can u plz help me out…..

THANKS A LOT…..

By: Krishna Sankar

Krishna Sankar — Mon, 23 Jan 2012 00:31:17 +0000

@Hemavathi: Bit error rate for BPSK in AWGN is discussed at
http://www.dsplog.com/2007/08/05/bit-error-probability-for-bpsk-modulation/

For hard decision vs. soft decision as an input to Viterbi decoder,
http://www.dsplog.com/2009/01/14/soft-viterbi/

By: Hemavathi

Hemavathi — Sun, 22 Jan 2012 07:05:11 +0000

Hi Krishna,
I need MATLAB programs to determine the error probabilities for orthogonal signalling by employing Hard decision and Soft decision decoding.

Would you please guide me

By: Krishna Sankar

Krishna Sankar — Tue, 15 Nov 2011 00:39:12 +0000

@ramireddy: Maybe the post on BER for BPSK in OFDM with Rayleigh channel helps you
http://www.dsplog.com/2008/08/26/ofdm-rayleigh-channel-ber-bpsk/

By: ramireddy venkatesh

ramireddy venkatesh — Sat, 12 Nov 2011 07:03:55 +0000

hello sir, im currently working on ofdm tx and rx.i have succesfully written the code.but i want to do it in rayleign multipath fading channel.would you mind to tell me what parameters i hav to consider and how to implement it. thankyou sir

By: Krishna Sankar

Krishna Sankar — Thu, 26 May 2011 00:51:36 +0000

@preeti: Thanks much