Addressing hidden terminals in WLANs with zero forcing coordinated beamforming

Shrestha, S; Fang, G; Dutkiewicz, E; Huang, X

Addressing hidden terminals in WLANs with zero forcing coordinated beamforming

Shrestha, S Fang, G Dutkiewicz, E

Huang, X

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Publication Type:: Conference Proceeding
Citation:: 14th International Symposium on Communications and Information Technologies, ISCIT 2014, 2015, pp. 249 - 253
Issue Date:: 2015-01-15

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Field	Value	Language
dc.contributor.author	Shrestha, S	en_US
dc.contributor.author	Fang, G	en_US
dc.contributor.author	Dutkiewicz, E https://orcid.org/0000-0002-4268-9286	en_US
dc.contributor.author	Huang, X https://orcid.org/0000-0001-6869-5732	en_US
dc.date.issued	2015-01-15	en_US
dc.identifier.citation	14th International Symposium on Communications and Information Technologies, ISCIT 2014, 2015, pp. 249 - 253	en_US
dc.identifier.isbn	9781479944163	en_US
dc.identifier.uri	http://hdl.handle.net/10453/34552
dc.description.abstract	© 2014 IEEE. We present here a new technique that can be used to address a well-known Hidden Terminal problem in Wireless Local Area Networks. Specifically, Zero Forcing Coordinated Beamforming can be applied, in a hidden terminal scenario, in order to null the signal of the interfering transmitter so that desired transmission can take place without collision at the receiver. Basically, a precoding range of a receiver is used as a determinant in order to take a nulling decisions based on the notion that a successful transmission depends on the interference free condition at the receiver. We demonstrate the feasibility of the approach in an USRP2/GNURadio test-bed prototype. Our scheme improves the SNR and Effective SNR from about 5 to 11 dB in a hidden terminal scenario and maintains collision free simultaneous transmissions.	en_US
dc.relation.ispartof	14th International Symposium on Communications and Information Technologies, ISCIT 2014	en_US
dc.relation.isbasedon	10.1109/ISCIT.2014.7011910	en_US
dc.title	Addressing hidden terminals in WLANs with zero forcing coordinated beamforming	en_US
dc.type	Conference Proceeding
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US

Abstract:

© 2014 IEEE. We present here a new technique that can be used to address a well-known Hidden Terminal problem in Wireless Local Area Networks. Specifically, Zero Forcing Coordinated Beamforming can be applied, in a hidden terminal scenario, in order to null the signal of the interfering transmitter so that desired transmission can take place without collision at the receiver. Basically, a precoding range of a receiver is used as a determinant in order to take a nulling decisions based on the notion that a successful transmission depends on the interference free condition at the receiver. We demonstrate the feasibility of the approach in an USRP2/GNURadio test-bed prototype. Our scheme improves the SNR and Effective SNR from about 5 to 11 dB in a hidden terminal scenario and maintains collision free simultaneous transmissions.

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http://hdl.handle.net/10453/34552