I have a Question about channel model parameters

hi all,

Now a days i am working on cooperative communication and i am
simulating my communication on channel model block but i don’t know the
purpose of the some parameters of channel model block like epsilon?,
taps?, and frequency offset? can somebody tell me the purpose of these
parameters

regards, Irfan U.

Irfan,

epsilon: Simulates Sampling-Clock-Mismatch. It uses rational-resampling
for
interpolation/decimation. value=1 means no-mismatch i.e.
in-samp-rate=out-samp-rate. value=1.00001 means receiver clock is
fast(sample added). value=0.9999 means rcvr clock is slow
(sample-skipped).
useful for testing Timing-Synch. Algo’s

taps: Filter taps to simulate channel-response. Useful for testing
Equalization Algo’s

frequency offset: Simulates Tx/Rx-Freq Mismatch. Useful for testing
Freq-Synch. Algo’s

-Adeel

On Thu, May 2, 2013 at 9:33 AM, Adeel A. [email protected] wrote:

     Now a days i am working on cooperative communication and i am

simulating my communication on channel model block but i don’t know the
purpose of the some parameters of channel model block like epsilon?, taps?,
and frequency offset? can somebody tell me the purpose of these parameters

regards, Irfan U.

They are also described in the manual:

http://gnuradio.org/doc/doxygen/classgr_1_1filter_1_1channel__model.html

Tom