Self-interference Mitigation in Full-duplex Relays:Blind Adaptive Techniques and Optimal Linear Filter Design

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School of Electrical Engineering | Doctoral thesis (article-based) | Defence date: 2018-03-23
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Date

2018

Department

Signaalinkäsittelyn ja akustiikan laitos
Department of Signal Processing and Acoustics

Major/Subject

Mcode

Degree programme

Language

en

Pages

87 + app. 101

Series

Aalto University publication series DOCTORAL DISSERTATIONS, 35/2018

Abstract

Wireless communication systems need to satisfy the increasing demand for high data rates, low latency and ubiquitous connectivity. Besides, efficient resource management and a high spectral efficiency are also paramount. Multi-hop communication via relays is an attractive and cost-effective solution for cooperative communication and coverage extension.  Full-duplex technology, i.e., simultaneous transmission and reception in the same frequency band, offers twice the spectral efficiency than its half-duplex counterpart, where transmission and reception take place in different time slots. Full-duplex technology makes possible for devices to operate directly on the waveform samples without synchronizing to the network, thus allowing to reduce the end-to-end latency and posing itself as an ideal solution for wireless systems. However, the implementation of a full-duplex device has several practical issues. Of utmost importance is the self-interference, which causes the transmitted signal to interfere with the received signal, leading to a severe drop of the signal-to-noise ratio. To fully take advantage of the full-duplex technology, self-interference must be mitigated. This dissertation addresses the issue of self-interference mitigation for different relay protocols and configurations. The first theme deals with adaptive blind algorithms for self-interference cancellation. Assuming no available training information or synchronization with the network, we propose algorithms that yield residual self-interference below noise level. The second theme considers the optimization of a full-duplex relay link subjected to limited dynamic range, i.e., impairments at transmission and reception sides. Considering available channel state information, we design optimal linear filters at each node under the maximum signal-to-noise ratio and the minimum mean square error criteria.

Description

Supervising professor

Wichman, Risto, Prof., Aalto University, Department of Signal Processing and Acoustics, Finland

Thesis advisor

Werner, Stefan, Prof., Norwegian University of Science and Technology, Norway
López Valcarce, Roberto, Prof., University of Vigo, Spain

Keywords

full-duplex, relays, wireless communication

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Parts

  • [Publication 1]: Roberto López-Valcarce, Emilio Antonio-Rodríguez, Carlos Mosquera and Fernando Pérez-González, “An Adaptive Feedback Canceller for Full-duplex Relays based on Spectrum Shaping”, IEEE Journal on Selected Areas in Communications, Vol. 30, No. 8, pp. 1566-1577, September 2012.
    DOI: 10.1109/JSAC.2012.120923 View at publisher
  • [Publication 2]: Emilio Antonio-Rodríguez, Stefan Werner, Roberto López-Valcarce, Taneli Riihonen and Risto Wichman, “Wideband Full-duplex MIMO Relays with Blind Adaptive Self-interference Cancellation”, Signal Processing, Vol. 130, pp. 74-85, January 2017.
    DOI: 10.1016/j.sigpro.2016.06.010 View at publisher
  • [Publication 3]: Emilio Antonio-Rodríguez, Stefan Werner, Roberto López-Valcarce and Risto Wichman, “MMSE Filter Design for Full-duplex Filter-and-forward MIMO Relays under Limited Dynamic Range”, submitted to IEEE Transactions on Signal Processing, 2017.
  • [Publication 4]: Emilio Antonio-Rodríguez and Roberto López-Valcarce, “Adaptive Self-interference Suppression for Full-duplex Relays with Multiple Receive Antennas”, in 13th IEEE International Workshop on Signal Processing Advances in Wireless Communications, pp. 454-458, Çesme, Turkey, June 2012.
    DOI: 10.1109/SPAWC.2012.6292948 View at publisher
  • [Publication 5]: Emilio Antonio-Rodríguez and Roberto López-Valcarce, “Cancelling Self-interference in Full-duplex Relays without Angle-of-arrival Information”, in IEEE International Conference on Acoustics, Speech and Signal Processing, Canada, pp. 4731-4735, Vancouver, Canada, May 2013.
    DOI: 10.1109/ICASSP.2013.6638558 View at publisher
  • [Publication 6]: Emilio Antonio-Rodríguez, Roberto López-Valcarce, Taneli Riihonen, Stefan Werner and Risto Wichman, “Autocorrelation-based Adaptation Rule for Feedback Equalization in Wideband Full-duplex Amplify-and-forward MIMO Relays”, in IEEE International Conference on Acoustics, Speech and Signal Processing, pp. 4968-4972, Vancouver, Canada, May 2013.
    DOI: 10.1109/ICASSP.2013.6638606 View at publisher
  • [Publication 7]: Emilio Antonio-Rodríguez, Roberto López-Valcarce, Taneli Riihonen, Stefan Werner and Risto Wichman, “Adaptive Self-interference Cancellation in Wideband Full-duplex Decode-and-forward MIMO Relays”, in 14th IEEE International Workshop on Signal Processing Advances in Wireless Communications, pp. 370-374, Darmstadt, Germany, June 2013.
    DOI: 10.1109/SPAWC.2013.6612074 View at publisher
  • [Publication 8]: Emilio Antonio-Rodríguez, Roberto López-Valcarce, Taneli Riihonen, Stefan Werner and Risto Wichman, “SINR Optimization in Wide-band Full-duplex MIMO Relays under Limited Dynamic Range”, in 8th IEEE Sensor Array and Multichannel Signal Processing Work-shop, pp. 177-180, A Coruña, Spain, June 2014.
    DOI: 10.1109/SAM.2014.6882369 View at publisher
  • [Publication 9]: Emilio Antonio-Rodríguez, Roberto López-Valcarce, Taneli Riihonen, Stefan Werner and Risto Wichman, “Subspace-constrained SINR Optimization in MIMO Full-duplex Relays under Limited Dynamic Range”, in 16th IEEE International Workshop on Signal Processing Advances in Wireless Communications, pp. 281-285, Stockholm, Sweden, June 2015.
    DOI: 10.1109/SPAWC.2015.7227044 View at publisher
  • [Publication 10]: Emilio Antonio-Rodríguez, Stefan Werner, Taneli Riihonen, and Risto Wichman, “Robust Filter Design for Full-duplex Relay Links under Limited Dynamic Range”, in 18th IEEE International Workshop on Signal Processing Advances in Wireless Communications, pp. 281-285, Sapporo, Japan, July 2017.
    DOI: 10.1109/SPAWC.2017.8227695 View at publisher

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https://urn.fi/URN:ISBN:978-952-60-7866-3

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[diss] Sähkötekniikan korkeakoulu / ELEC