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The University of Michigan
Name of Sponsoring Professors:
Department of Electrical Engineering and Computer Science
Electronic Design for Mobile Platforms
Network Layer Simulation and Optimization
The Multidisciplinary University Research Initiative
(MURI) undertaken at the University of Michigan was to
investigate the various protocols, algorithms and hardware
design for future army communication systems from a low
energy perspective. This
overview gives a general
description of the MURI project and how its simulation in
OPNET was integrated with the simulated annealing method,
our optimization tool.
Simulation and Optimization Setup
Since we used an averaged value over the same parameter set
as the value of the objective function for
optimization (Please see Status Report below for detail),
we actually shortened the execution time by
running many OPNET simulation
processes parallelly on different
machines, with each process having the same parameter set
but a different random seed.
Modeling in OPNET
A wireless ad hoc network can be very complicated
and it may consist of many mobile units with a lot of
different functionalities. We have a
generic node structure
modeled in OPNET.
We have been adding new features in our OPNET
models since our review in ARL in July, 1999.
Wireless link state routing similar to OSPF in each node.
Convolutional decoding and turbo decoding data from
processing layer for network simulation.
Wave propagation model in forest.
Wave propagation model from SUO (small unit operation)
The status reports give more detailed description about
the progress of MURI network layer simulation and
There are several important reviews at different stages
of the MURI project. The presentation files for
each review are given here.
A lot of papers related to "MURI Low-Energy
Electronic Design for Mobile Platforms" have been published.
Please refer to
principal investigator's MURI homepage
for a full list of publications. The paper
below is most closely related to
MURI network layer simulation and
Mobility Model Study