Rosand, Aaron

Schwarz, Boris; Schwarz, Kathryn

doi:10.1093/gmo/9781561592630.article.43684

Cited by 1 publication

(2 citation statements)

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“…The RF SMA output of the WiFi router is connected with a RF coaxial cable to a set of cascaded RF attenuators, which can provide power attenuation at a physical (analog) level ranging from 10dB to 70dB attenuation. Then, a RF 1:2 splitter T-junction is used to divide the signal in equal outputs: one is connected to a Spectrum Analyzer [34] and the other output is connected to one channel of our 2X2 MiMO WiFi reader operating in sniffer mode. The analog RF power is measured from the Spectrum Analyzer integrating the received power spectrum density with a spectral mask of 22MHz (clause 17 from [34]).…”

Section: B Digital Rssi Mimo Wifi Signal Processingmentioning

confidence: 99%

“…Then, a RF 1:2 splitter T-junction is used to divide the signal in equal outputs: one is connected to a Spectrum Analyzer [34] and the other output is connected to one channel of our 2X2 MiMO WiFi reader operating in sniffer mode. The analog RF power is measured from the Spectrum Analyzer integrating the received power spectrum density with a spectral mask of 22MHz (clause 17 from [34]). Then, this power is compared with the RSSI value obtained from the WiFi MiMo reader data, obtaining the plots shown in Fig.…”

Section: B Digital Rssi Mimo Wifi Signal Processingmentioning

confidence: 99%

See 1 more Smart Citation

Hybrid Analog-Digital Processing System for Amplitude-Monopulse RSSI-Based MiMo WiFi Direction-of-Arrival Estimation

Gómez‐Tornero

Casamichana

López-Pastor

et al. 2018

IEEE J. Sel. Top. Signal Process.

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We present a cost-effective hybrid analog digital system to estimate the Direction of Arrival (DoA) of WiFi signals. The processing in the analog domain is based on simple wellknown RADAR amplitude monopulse antenna techniques. Then, using the RSSI (Received Signal Strength Indicator) delivered by commercial MiMo WiFi cards, the DoA is estimated using the socalled digital monopulse function. Due to the hybrid analog digital architecture, the digital processing is extremely simple, so that DoA estimation is performed without using IQ data from specific hardware. The simplicity and robustness of the proposed hybrid analog digital MiMo architecture is demonstrated for the ISM 2.45GHz WiFi band. Also, the limitations with respect to multipath effects are studied in detail. As a proof of concept, an array of two MiMo WiFi DoA monopulse readers are distributed to localize the two-dimensional position of WiFi devices. This costeffective hybrid solution can be applied to all WiFi standards and other IoT narrowband radio protocols, such us Bluetooth Low Energy or Zigbee.

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Section: B Digital Rssi Mimo Wifi Signal Processingmentioning

confidence: 99%

Section: B Digital Rssi Mimo Wifi Signal Processingmentioning

confidence: 99%