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                       A WiFi spectrum analysis is the process of measuring the WiFi signal in a certain area and determining its strength. A WiFi spectrum analysis is typically performed to find interference that negatively impacts wireless performance and to eliminate it.

WiFi Spectrum Analyzer feature provides the real time metrics for the WiFi radio spectrum

TR-181 Data Model Parameter

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1.Device.WiFi.NeighboringWiFiDiagnostic.Enable

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2. Device.WiFi.NeighboringWiFiDiagnostic.DiagnosticsState

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3.Device.WiFi.NeighboringWiFiDiagnostic.ResultNumberOfEntries

Index value will be based on ResultNumberOfEntries

Device.WiFi.NeighboringWiFiDiagnostic.Result.index.

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Design Considerations

1. Integrated wifi-spectrum analyzer php , ajax files to view the UI page in Browser.
2. Newly added php and ajax files are wifi_spectrum_analyzer.php, spectrum_analyzer_download.php,at_saving.php, ajax_wifi_spectrum_analyzer.php,ajax_at_saving.php
3. Modified nav.php in include folder
4. Added Troubleshooting > Wi-Fi Spectrum Analyzer page in WebUI
5. Implemented wifi_getNeighboringWiFiDiagnosticResult2() api's in wifi hal layer

Architecture

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• Telemetry Design in R-Pi / Emulator