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REALWSN
2010

An Experimental Study on IEEE 802.15.4 Multichannel Transmission to Improve RSSI-Based Service Performance

9 years 5 months ago
An Experimental Study on IEEE 802.15.4 Multichannel Transmission to Improve RSSI-Based Service Performance
Abstract. In Wireless Sensor Networks (WSNs) the majority of the devices provide access to the Received Signal Strength Indicator (RSSI), which has been used as a means to enable different services and applications like localization, geographic routing and link quality estimation. Notwithstanding the popularity of using RSSI for localization, academic research showed that RSSI-based distance estimate is rather unreliable due to the random attenuation experienced by the radio signals, as the multipath fading. In this paper we propose a simple way to improve the RSSI reliability, averaging samples collected at different frequencies by a CC2420 radio, which implements the IEEE 802.15.4 standard, both in real indoor and outdoor scenarios. For this purpose, we introduce a simple communication protocol to coordinate data exchange between nodes, that exploits multichannel transmission in order to mitigate the multipath effect that hampers ranging estimation as well as wireless communication.
Andrea Bardella, Nicola Bui, Andrea Zanella, Miche
Added 20 May 2011
Updated 20 May 2011
Type Journal
Year 2010
Where REALWSN
Authors Andrea Bardella, Nicola Bui, Andrea Zanella, Michele Zorzi
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