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Ad hoc wireless networks: Analysis, protocols, architecture, and
towards convergence
P. R. Kumar,
Professor of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign:
Tuesday October 1, 2002 4:30 pm, Rutgers University, CoRE Building 431:
Ad Hoc wireless networks are networks formed by nodes with radios.
Since the wireless medium is a shared medium, it is important to
determine how much traffic they can carry.
Under a technological model of such networks, we show that the
total traffic carrying capacity that
scales as the square root of the number of nodes in the network.
We also present a sharp information theoretic characterization
of the traffic they can carry, which allows for
more sophisticated usage than current technology.
The operation of ad hoc networks requires several asynchronous
distributed protocols which can adapt to the
location and number of nodes in the network, and to the traffic
demands. We present three such protocols for problems arising
especially in wireless networks -- power control (COMPOW),
media access (SEEDEX), and routing (STARA).
Finally, we comment on some architectural issues important to
the next phase of the information technology revolution, the
convergence of communication, control, sensing and actuation.
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