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Design and Evaluation of a Wideband Full-Duplex OFDM System Based on AASIC

Zhaowu Zhan 1 Guillaume Villemaud 1, * Jean-Marie Gorce 1
* Corresponding author
1 SOCRATE - Software and Cognitive radio for telecommunications
Inria Grenoble - Rhône-Alpes, CITI - CITI Centre of Innovation in Telecommunications and Integration of services
Abstract : Existing methods of self-interference cancellation have greatly reduced the strong self-interference signal for the practical design of Full-Duplex (FuDu) wireless systems. However, current FuDu wireless is hard to be put into practice due to the reason that residual self-interference after interference cancellation is still much stronger than the thermal noise. In this paper, a wideband FuDu OFDM system with a single path self-interference channel is developed based on active analog self-interference cancellation (AASIC) at the RF component. Furthermore, a mathematical model of the wideband FuDu OFDM wireless system and the AASIC at the RF component are presented and elaborated. The performance of this FuDu system is evaluated by ADS-Matlab co-simulation based on the IEEE 802.11g system parameters. The comparison of the spectrum power of signals before and after the AASIC and the bite error rate (BER) performance of the FuDu OFDM wireless system show that the strong self-interference can be significantly reduced to almost noise level.
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https://hal.inria.fr/hal-00920918
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Submitted on : Thursday, December 19, 2013 - 2:06:28 PM
Last modification on : Wednesday, July 8, 2020 - 12:43:07 PM
Long-term archiving on: : Thursday, March 20, 2014 - 6:30:31 AM

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Zhaowu Zhan, Guillaume Villemaud, Jean-Marie Gorce. Design and Evaluation of a Wideband Full-Duplex OFDM System Based on AASIC. IEEE Personal Indoor and Mobile Radio Communications (PIMRC), 2013, Sep 2013, London, United Kingdom. pp.68 - 72, ⟨10.1109/PIMRC.2013.6666106⟩. ⟨hal-00920918⟩

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