Outage Scaling Laws and Diversity for Distributed Estimation Over Parallel Fading Channels

@article{Bai2009OutageSL,
  title={Outage Scaling Laws and Diversity for Distributed Estimation Over Parallel Fading Channels},
  author={Kai Bai and Habib Senol and Cihan Tepedelenlioglu},
  journal={IEEE Transactions on Signal Processing},
  year={2009},
  volume={57},
  pages={3182-3192}
}
We consider scaling laws of the outage for distributed estimation problems over fading channels with respect to the total power and the number of sensors. Using a definition of diversity which involves a fixed number of sensors, we find tight upper and lower bounds on diversity which are shown to depend on the sensing (measurement) signal-to-noise ratios (SNRs) of the sensors. Our results indicate that the diversity order can be smaller than the number of sensors, and adding new sensors might… CONTINUE READING