Loop-Back Interference Suppression for OFDM Signals via Sampled-Data Control
Abstract
In this article, we consider the problem of loop-back interference suppression for orthogonal frequency division multiplexing (OFDM) signals in amplify-and-forward single-frequency full-duplex relay stations. The loop-back interference makes the system a closed-loop system, and hence it is important not only to suppress the interference but also to stabilize the system. For this purpose, we propose sampled-data $H^{\infty}$ design of digital filters that ensure the stability of the system and suppress the continuous-time effect of interference at the same time. Simulation results are shown to illustrate the effectiveness of the proposed method.
- Publication:
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arXiv e-prints
- Pub Date:
- December 2014
- DOI:
- 10.48550/arXiv.1412.3238
- arXiv:
- arXiv:1412.3238
- Bibcode:
- 2014arXiv1412.3238S
- Keywords:
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- Computer Science - Systems and Control;
- Computer Science - Information Theory;
- Mathematics - Optimization and Control
- E-Print:
- 10th Asian Control Conference 2015 (ASCC 2015), 2015