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Duplexer design and implementation for self-interference cancellation in full-duplex communications
Beijing Engineering and Technology Research Center for Convergence Networks and Ubiquitous Services, University of Science and Technology.
Beijing Engineering and Technology Research Center for Convergence Networks and Ubiquitous Services, University of Science and Technology.
Beijing Engineering and Technology Research Center for Convergence Networks and Ubiquitous Services, University of Science and Technology.
Beijing Engineering and Technology Research Center for Convergence Networks and Ubiquitous Services, University of Science and Technology.
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Number of Authors: 6
2016 (English)In: European Signal Processing Conference, EUSIPCO 2016, Piscataway, NJ: IEEE Computer Society Digital Library, 2016, 125-129 p., 7760223Conference paper (Refereed)
Abstract [en]

The full-duplex (FD) based devices are capable of concurrently transmitting and receiving signals with a single frequency band. However, a severe self-interference (SI) due to the large difference between the power of the devices' own transmission and that of the signal of interest may be imposed on the FD based devices, thus significantly eroding the received signal-to-interference-plus-noise ratio (SINR). To implement the FD devices, the SI power must be sufficiently suppressed to provide a high-enough received SINR for satisfying the decoding requirement. In this paper, the design and implementation of the duplexer for facilitating SI cancellation in FD based devices are investigated, with a new type of duplexer (i.e. an improved directional coupler) designed and verified. It is shown that the SI suppression capability may be up to 36 dB by using the proposed design, which is much higher than that attainable in the commonly designed ferrite circulator

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Computer Society Digital Library, 2016. 125-129 p., 7760223
Series
Proceedings of the European Signal Processing Conference (EUSIPCO), ISSN 2076-1465
National Category
Media and Communication Technology
Research subject
Computer Aided Design
Identifiers
URN: urn:nbn:se:ltu:diva-61281DOI: 10.1109/EUSIPCO.2016.7760223ScopusID: 2-s2.0-85005950774ISBN: 978-0-9928-6265-7OAI: oai:DiVA.org:ltu-61281DiVA: diva2:1060712
Conference
24th European Signal Processing Conference, EUSIPCO 2016, Budapest, Hungary, 28 August - 2 September 2016
Available from: 2016-12-29 Created: 2016-12-29 Last updated: 2016-12-29Bibliographically approved

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Vasilakos, Athanasios
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