Graduate School and Research Center in Digital Sciences

Demo: Mitigating multiple narrowband interferers in SDR IEEE 802.11g diversity receiver

Kumit, Sumar; Kaltenberger, Florian

MOBICOM 2018, 24th Annual International Conference on Mobile Computing and Networking, 29 October-2 November 2018, New Delhi, India

Narrowband transmitters such as IEEE 802.15.4 (ZigBee) operating in 2.4 GHz ISM band cause significant degradation of throughput to the co-channel IEEE 802.11g (WiFi). The phenomenon is common in smart factories and smart homes which generously use ZigBee sensors for process monitoring and automation. This interferes with omnipresent WiFi in the same 2.4 GHz ISM band. In our demonstration, we will present Software Defined Radio (SDR) based single antenna and multi-antenna prototype of standard-compliant IEEE 802.11g receiver. Our receiver prototype is capable of significantly reducing the packet error rate while facing multiple co-channel narrowband ZigBee interferers. We also demonstrate a real-time SDR implementation of Soft Bit Maximal Ratio Combiner capable of decoding frames from standard compliant IEEE 802.11g transmitters. This is a first of its kind implementation to the best of author's knowledge. The demonstrations use Ettus B210 as SDR hardware and a combination of signal processing modules from two different SDR packages: GNU Radio and Openairinterface.

Document Doi Bibtex

Title:Demo: Mitigating multiple narrowband interferers in SDR IEEE 802.11g diversity receiver
Keywords:WiFi; ZigBee; Co-Channel Interference; Interference Mitigation
Type:Poster / Demo
Language:English
City:New Delhi
Country:INDIA
Date:
Department:Communication systems
Eurecom ref:5655
Copyright: © ACM, 2018. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in MOBICOM 2018, 24th Annual International Conference on Mobile Computing and Networking, 29 October-2 November 2018, New Delhi, India http://dx.doi.org/10.1145/3241539.3267713
Bibtex: @poster / demo{EURECOM+5655, year = {2018}, title = {{D}emo: {M}itigating multiple narrowband interferers in {SDR} {IEEE} 802.11g diversity receiver}, author = {{K}umit, {S}umar and {K}altenberger, {F}lorian}, number = {EURECOM+5655}, month = {10}, institution = {Eurecom} address = {{N}ew {D}elhi, {INDIA}}, url = {http://www.eurecom.fr/publication/5655} }
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