New Design Principles for Estimation over Fading Channels in Mobile Sensor Networks
Yasami Mostofi and Richard M. Murray
2005 Conference on Decision and Control (CDC)
In this paper we provide new design principles
for estimation over wireless fading channels in mobile sensor
networks. We show how to optimize receiver and transmitter
designs to improve estimation performance in the application
layer. On the receiver side, we show that the optimum packet
drop mechanism is the one that provides a balance between
information loss and communication noise. On the transmitter
side, we show how to optimize and adapt the transmission
rate for performance improvement in the application layer.
We further provide stability conditions for different design
strategies. The work confirms that delay-sensitive mobile
sensor applications require new design paradigms and applying
the same design principles of data networks can lead
to performance degradation. The work also highlights the
importance of cross-layer feedback and provides alternative
designs if such feedbacks are not available.
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Richard Murray
(murray@cds. caltech.edu)