e consider a cooperative cognitive wireless network scenario where a primary wireless network is co-located with a cognitive (or secondary) network. In the considered scenario, the nodes of the secondary network make local binary decisions about the presence of a signal emitted by a primary node. Then, they transmit their decisions to a fusion center (FC). The final decision about the channel state is up to the FC by means of a proper fusion rule. In this scenario, we derive the optimum decision strategy for the FC and the optimum local decision thresholds of the secondary nodes in a Neyman-Pearson setup. In particular, the overall system performance are derived by making the realistic assumption that the position of the primary user is completely unknown to the FC.

Abrardo, A., Barni, M. (2015). Optimum decision fusion in cognitive wireless sensor networks with unknown users location. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp.3212-3216). New York : IEEE [10.1109/ICASSP.2015.7178564].

Optimum decision fusion in cognitive wireless sensor networks with unknown users location

Abrardo, Andrea;Barni, Mauro
2015-01-01

Abstract

e consider a cooperative cognitive wireless network scenario where a primary wireless network is co-located with a cognitive (or secondary) network. In the considered scenario, the nodes of the secondary network make local binary decisions about the presence of a signal emitted by a primary node. Then, they transmit their decisions to a fusion center (FC). The final decision about the channel state is up to the FC by means of a proper fusion rule. In this scenario, we derive the optimum decision strategy for the FC and the optimum local decision thresholds of the secondary nodes in a Neyman-Pearson setup. In particular, the overall system performance are derived by making the realistic assumption that the position of the primary user is completely unknown to the FC.
2015
9781467369978
Abrardo, A., Barni, M. (2015). Optimum decision fusion in cognitive wireless sensor networks with unknown users location. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp.3212-3216). New York : IEEE [10.1109/ICASSP.2015.7178564].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/981854