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A large deviations approach to sensor scheduling for detection of correlated random fields

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3 Author(s)
Youngchul Sung ; Sch. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA ; Lang Tong ; Poor, H.V.

The problem of scheduling sensor transmissions for the detection of correlated random fields using spatially deployed sensors is considered. Using the large deviations principle, a closed-form expression for the error exponent of the miss probability is given as a function of the sensor spacing and signal-to-noise ratio (SNR). It is shown that the error exponent has a distinct characteristic: at high SNR, the error exponent monotonically increases with respect to sensor spacing, while at low SNR, there is an optimal spacing for scheduled sensors.

Published in:

Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on  (Volume:3 )

Date of Conference:

18-23 March 2005