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ThinkMind // ICWMC 2012, The Eighth International Conference on Wireless and Mobile Communications // View article icwmc_2012_18_10_20270


Identifying Sources of Interference in RSSI Traces of a Single IEEE 802.15.4 Channel

Authors:
Sven Zacharias
Thomas Newe
Sinead O’Keeffe
Elfed Lewis

Keywords: IEEE 802.15.4; Radio Signal Strength Indicator (RSSI); 2.4 GHz ISM band; interference; coexistence; Wireless Sensor Network (WSN)

Abstract:
This paper presents the possibility of using RSSI readings to monitor a single IEEE 802.15.4 channel in the 2.4 GHz ISM band. An overview of the main sources of interference - namely Wireless Local Area Networks (WLANs), Bluetooth devices and microwave ovens - is given. Finally, an algorithm to classify one second of RSSI readings into one of these device classes is presented. The algorithm classifies 762 of 790 samples (96.46 %) correctly, having its worst precision with 97.41 % for the Bluetooth device class and its worst recall/sensitivity with 84.21 % for the microwave oven class. This algorithm gives an overview of interfering wireless devices without the need of changing the channel and thus allowing a continuous message reception.

Pages: 408 to 414

Copyright: Copyright (c) IARIA, 2012

Publication date: June 24, 2012

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-203-5

Location: Venice, Italy

Dates: from June 24, 2012 to June 29, 2012

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