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Mitigating Lateral Interference: Adaptive Beam Switching for Robust Millimeter-Wave Networks

Steinmetzer, Daniel ; Loch, Adrian ; García-García, Amanda ; Widmer, Jörg ; Hollick, Matthias :
Mitigating Lateral Interference: Adaptive Beam Switching for Robust Millimeter-Wave Networks.
1st ACM Workshop on Millimeter Wave Networks and Sensing Systems (mmNets 2017) ACM
[ Konferenzveröffentlichung] , (2017)

Kurzbeschreibung (Abstract)

Putting into practice 'pseudo-wire' links in wireless millimeter-wave (mm-wave) networks is challenging due to the significant side lobes of consumer-grade phased antenna arrays. Nodes should steer their beams such that they maximize the signal gain but also minimize interference from lateral directions via both their main lobe and their side lobes. Most importantly, interference can be caused by parallel operation of incompatible standards such as WiGig and IEEE 802.11ad and may change very fast. This timing requirement, prevents the use of existing beam switching solutions to mitigate interference. In this paper, we present an adaptive beam switching (ABS) mechanism that can deal with the above timescale issue in rapidly changing interference scenarios. Instead of performing a full beam sweep, the key idea is to only probe beampatterns at the receiver which are likely to avoid interference. In contrast to earlier work, our mechanism does not require any location information nor a detailed shape of the beampatterns. We exploit similarities among side lobes of beampatterns to estimate the performance of all beampatterns without sending extensive probes. To evaluate our mechanism in practice, we develop a customized research platform that allows us to control the beam-selection on low-cost IEEE 802.11ad routers. Experimental results with WiGig transceivers as interference source show that our adaptive beam switching mechanism achieves an average throughput gain of 60% and decreases the training time by 82.4% compared to the original IEEE 802.11ad behavior.

Typ des Eintrags: Konferenzveröffentlichung ( nicht bekannt)
Erschienen: 2017
Autor(en): Steinmetzer, Daniel ; Loch, Adrian ; García-García, Amanda ; Widmer, Jörg ; Hollick, Matthias
Titel: Mitigating Lateral Interference: Adaptive Beam Switching for Robust Millimeter-Wave Networks
Sprache: Englisch
Kurzbeschreibung (Abstract):

Putting into practice 'pseudo-wire' links in wireless millimeter-wave (mm-wave) networks is challenging due to the significant side lobes of consumer-grade phased antenna arrays. Nodes should steer their beams such that they maximize the signal gain but also minimize interference from lateral directions via both their main lobe and their side lobes. Most importantly, interference can be caused by parallel operation of incompatible standards such as WiGig and IEEE 802.11ad and may change very fast. This timing requirement, prevents the use of existing beam switching solutions to mitigate interference. In this paper, we present an adaptive beam switching (ABS) mechanism that can deal with the above timescale issue in rapidly changing interference scenarios. Instead of performing a full beam sweep, the key idea is to only probe beampatterns at the receiver which are likely to avoid interference. In contrast to earlier work, our mechanism does not require any location information nor a detailed shape of the beampatterns. We exploit similarities among side lobes of beampatterns to estimate the performance of all beampatterns without sending extensive probes. To evaluate our mechanism in practice, we develop a customized research platform that allows us to control the beam-selection on low-cost IEEE 802.11ad routers. Experimental results with WiGig transceivers as interference source show that our adaptive beam switching mechanism achieves an average throughput gain of 60% and decreases the training time by 82.4% compared to the original IEEE 802.11ad behavior.

Buchtitel: 1st ACM Workshop on Millimeter Wave Networks and Sensing Systems (mmNets 2017)
Verlag: ACM
Freie Schlagworte: S1;Solutions;Interference, Millimeter-Wave, mm-wave, 60 GHz, 802.11ad, Talon AD7200, Beam Steering, Sector Sweep
Fachbereich(e)/-gebiet(e): 20 Fachbereich Informatik > Sichere Mobile Netze
DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1119: CROSSING – Kryptographiebasierte Sicherheitslösungen als Grundlage für Vertrauen in heutigen und zukünftigen IT-Systemen
Profilbereiche > Cybersicherheit (CYSEC)
LOEWE > LOEWE-Zentren > CRISP - Center for Research in Security and Privacy
LOEWE > LOEWE-Schwerpunkte > NICER – Vernetzte infrastrukturlose Kooperation zur Krisenbewältigung
LOEWE > LOEWE-Schwerpunkte
LOEWE > LOEWE-Zentren
DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche
20 Fachbereich Informatik
Profilbereiche
LOEWE
DFG-Sonderforschungsbereiche (inkl. Transregio)
Veranstaltungsort: Snowbird, Utah, USA
Hinterlegungsdatum: 03 Aug 2017 12:59
DOI: 10.1145/3130242.3130244
ID-Nummer: TUD-CS-2017-0210
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