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Paper Abstract and Keywords
Presentation 2017-10-24 14:00
[Poster Presentation] Analysis of Utilizing Lossless Networks for Self-Interference Cancellation Purpose in Full-Duplex Wireless Transceivers
Ramez Askar, Abdulsalam Hamdan, Wilhelm Keusgen, Thomas Haustein (Fraunhofer HHI)
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, a novel self-interference cancellation technique is proposed for dedicated transmit and receive antenna configuration in full-duplex wireless transceiver. The technique relies on a lossless decoupling network that interconnects the transceiver's chains to the antenna elements. The reactive components, which are the building blocks of the lossless network, can be computed to suppress the self-interference at the local receivers for the targeted frequency. Therefore, the technique provides a self-interference suppression method at the radio-frequency domain without wasting any additional energy for cancellation purpose. Moreover, the technique can implicitly assure optimized power delivery among the antenna array elements and the transceiver front-ends. Network analysis of a multiple-input-multiple-output antenna array in a full-duplex transceiver is presented in order to describe the self-interference in terms of mutual coupling among the antenna array elements. Mutual coupling measurements between two identical antennas are presented and analyzed. Finally, empirical assessment of the proposed self-interference cancellation technique is provided, to show that the self-interference suppression can exceed 70 dB level by utilizing the proposed technique.
Keyword (in Japanese) (See Japanese page) 
(in English) Full-Duplex / Self-interference / self-interference cancellation / Impedance matching / MIMO / / /  
Reference Info. IEICE Tech. Rep.
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Conference Information
Committee SR SRW RCS  
Conference Date 2017-10-23 - 2017-10-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Grand Hotel Palatino, Rome, Italy 
Topics (in Japanese) (See Japanese page) 
Topics (in English) SmartCom2017 
Paper Information
Registration To SR 
Conference Code 2017-10-SR-SRW-RCS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of Utilizing Lossless Networks for Self-Interference Cancellation Purpose in Full-Duplex Wireless Transceivers 
Sub Title (in English)  
Keyword(1) Full-Duplex  
Keyword(2) Self-interference  
Keyword(3) self-interference cancellation  
Keyword(4) Impedance matching  
Keyword(5) MIMO  
1st Author's Name Ramez Askar  
1st Author's Affiliation Fraunhofer Heinrich Hertz Institute (Fraunhofer HHI)
2nd Author's Name Abdulsalam Hamdan  
2nd Author's Affiliation Fraunhofer Heinrich Hertz Institute (Fraunhofer HHI)
3rd Author's Name Wilhelm Keusgen  
3rd Author's Affiliation Fraunhofer Heinrich Hertz Institute (Fraunhofer HHI)
4th Author's Name Thomas Haustein  
4th Author's Affiliation Fraunhofer Heinrich Hertz Institute (Fraunhofer HHI)
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Speaker Author-1 
Date Time 2017-10-24 14:00:00 
Presentation Time 120 minutes 
Registration for SR 
Paper #  
Volume (vol) vol.117 
Number (no) no.257(SR), no.258(SRW) 
Date of Issue  

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