
DelayChannel |
ptolemy.domains.wireless.lib.DelayChannel |
Model of a wireless channel with a specified propagation speed and
loss probability. The propagation speed introduces delay that depends
on the distance between the transmitter and receiver at the time
that the transmitter initiates the communication. This channel model
assumes that the duration of the message is (effectively) zero, so
that neither the transmitter nor the receiver move during the
transmission. It also assumes that the receiver does not move during
propagation. I.e., it assumes that the propagation of the message is
much faster than the node movement.
<p>
A speed equal to Infinity (the default) results in no
propagation delay. If the loss probability is greater than zero then on each
call to the transmit() method, for each receiver in range,
with the specified probability, the transmission to that
receiver will not occur. Whether a transmission occurs to a particular
receiver is independent of whether it occurs to any other receiver.
Author(s): Edward A. Lee
Version:$Id: DelayChannel.doc.html,v 1.1 2006/02/22 18:40:26 mangal Exp $
Pt.Proposed Rating:Green (cxh)
Pt.Accepted Rating:Yellow (cxh)
propagationSpeed
The propagation speed. This determines the delay between
transmission and reception. This is a double that defaults
to Infinity, which means that there is no delay.