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Article Dans Une Revue IEEE Signal Processing Letters Année : 2011

Energy Detection Limits under Log-Normal Approximated Noise Uncertainty

Résumé

We revisit, in this letter, the impact of noise uncertainty on the performance of the well known energy detector. Mainly, we reconsider the case of a Log-Normal approximated noise uncertainty suggested in the work of Alexander Sonnenschein and Philip M. Fishman. We show that under a Log-Normal noise uncertainty, we can avoid a worst case analysis of the detector's performances. Thus we show that, relying on mild approximations, we can design a detector with a fixed probability of false alarm function of the uncertainty, and present a new expression of the SNR-wall that depends on the desired performances of the detector as well as the introduced uncertainty parameter.

Domaines

Electronique
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Dates et versions

hal-00608186 , version 1 (12-07-2011)

Identifiants

Citer

Wassim Jouini. Energy Detection Limits under Log-Normal Approximated Noise Uncertainty. IEEE Signal Processing Letters, 2011, 18 (7), pp.423-426. ⟨10.1109/LSP.2011.2155649⟩. ⟨hal-00608186⟩
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