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GLOBECOM
2008
IEEE

Self-Interference Aided Channel Estimation in Two-Way Relaying Systems

8 years 8 months ago
Self-Interference Aided Channel Estimation in Two-Way Relaying Systems
—In this paper, we propose a novel channel estimation scheme for the broadcast phase of the newly invented twoway relaying technique. Instead of using pilot sequences, we exploit the self-interference, which contains the data known at the receivers, to get a first estimate of the channel. Then a decisiondirected iterative estimation process is started to improve the accuracy of the channel estimates. We consider a block fading channel model. The simulation results show that the proposed scheme has similar performance as pilot-aided channel estimation schemes in our simulation environment. Since pilot sequences are no longer needed in our proposed scheme, higher spectrum efficiency is achieved without performance loss.
Jian Zhao, Marc Kuhn, Armin Wittneben, Gerhard Bau
Added 29 May 2010
Updated 29 May 2010
Type Conference
Year 2008
Where GLOBECOM
Authors Jian Zhao, Marc Kuhn, Armin Wittneben, Gerhard Bauch
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