This chapter deals with a distributed version of the binary-hypothesis test which formalizes the case in which a wireless sensor network (WSN) is used for detecting a binary event, and a fusion center (FC) with multiple antennas collects the information for a robust decision. The presence of multiple antennas at both transmit and receive sides resembles a multiple-input-multiple-output (MIMO) system and allows for utilization of array-processing techniques providing spectral efficiency and fading mitigation. The problem is here referred to as MIMO decision fusion. Coherent decision fusion, i.e., the case when instantaneous channel state information (CSI) is available at the FC, is first studied: “Decode-and-Fuse” and “Decode-then-Fuse” approaches are introduced and compared. Successively, noncoherent decision fusion, i.e., the case when statistical CSI is available at the FC, is analyzed: the focus is on the energy test and related optimality characteristics.

Channel-aware decision fusion in MIMO wireless sensor networks / Ciuonzo, D.; Rossi, P. S.. - (2019), pp. 111-129. [10.1049/PBCE117E_ch5]

Channel-aware decision fusion in MIMO wireless sensor networks

Ciuonzo D.;
2019

Abstract

This chapter deals with a distributed version of the binary-hypothesis test which formalizes the case in which a wireless sensor network (WSN) is used for detecting a binary event, and a fusion center (FC) with multiple antennas collects the information for a robust decision. The presence of multiple antennas at both transmit and receive sides resembles a multiple-input-multiple-output (MIMO) system and allows for utilization of array-processing techniques providing spectral efficiency and fading mitigation. The problem is here referred to as MIMO decision fusion. Coherent decision fusion, i.e., the case when instantaneous channel state information (CSI) is available at the FC, is first studied: “Decode-and-Fuse” and “Decode-then-Fuse” approaches are introduced and compared. Successively, noncoherent decision fusion, i.e., the case when statistical CSI is available at the FC, is analyzed: the focus is on the energy test and related optimality characteristics.
2019
9781785615849
9781785615856
Channel-aware decision fusion in MIMO wireless sensor networks / Ciuonzo, D.; Rossi, P. S.. - (2019), pp. 111-129. [10.1049/PBCE117E_ch5]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/873272
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