Addressing hidden terminals in WLANs with zero forcing coordinated beamforming

Sanjeeb Shrestha; Gengfa Fang; Eryk Dutkiewicz; Xiaojing Huang

doi:10.1109/ISCIT.2014.7011910

Addressing hidden terminals in WLANs with zero forcing coordinated beamforming

Sanjeeb Shrestha, Gengfa Fang, Eryk Dutkiewicz, Xiaojing Huang

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

4 Citations (Scopus)

Abstract

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.

Original language	English
Title of host publication	14th International Symposium on Communications and Information Technologies, ISCIT 2014
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	249-253
Number of pages	5
ISBN (Electronic)	9781479944163
DOIs	https://doi.org/10.1109/ISCIT.2014.7011910
Publication status	Published - 2014
Event	14th International Symposium on Communications and Information Technologies, ISCIT 2014 - Incheon, Korea, Republic of Duration: 24 Sept 2014 → 26 Sept 2014

Other

Other	14th International Symposium on Communications and Information Technologies, ISCIT 2014
Country/Territory	Korea, Republic of
City	Incheon
Period	24/09/14 → 26/09/14

Keywords

Hidden Terminals
Nulling
Precoding Range
Precoding Vector

Access to Document

10.1109/ISCIT.2014.7011910

Cite this

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title = "Addressing hidden terminals in WLANs with zero forcing coordinated beamforming",

abstract = "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.",

keywords = "Hidden Terminals, Nulling, Precoding Range, Precoding Vector",

author = "Sanjeeb Shrestha and Gengfa Fang and Eryk Dutkiewicz and Xiaojing Huang",

year = "2014",

doi = "10.1109/ISCIT.2014.7011910",

language = "English",

pages = "249--253",

booktitle = "14th International Symposium on Communications and Information Technologies, ISCIT 2014",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "14th International Symposium on Communications and Information Technologies, ISCIT 2014 ; Conference date: 24-09-2014 Through 26-09-2014",

}

Shrestha, S, Fang, G, Dutkiewicz, E & Huang, X 2014, Addressing hidden terminals in WLANs with zero forcing coordinated beamforming. in 14th International Symposium on Communications and Information Technologies, ISCIT 2014., 7011910, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 249-253, 14th International Symposium on Communications and Information Technologies, ISCIT 2014, Incheon, Korea, Republic of, 24/09/14. https://doi.org/10.1109/ISCIT.2014.7011910

Addressing hidden terminals in WLANs with zero forcing coordinated beamforming. / Shrestha, Sanjeeb; Fang, Gengfa; Dutkiewicz, Eryk et al.
14th International Symposium on Communications and Information Technologies, ISCIT 2014. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2014. p. 249-253 7011910.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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T1 - Addressing hidden terminals in WLANs with zero forcing coordinated beamforming

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AB - 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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KW - Precoding Vector

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Addressing hidden terminals in WLANs with zero forcing coordinated beamforming

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