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Practical Considerations for Full Duplex Enabled 5G Integrated Access and Backhaul

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Abstract

With the advent of 5G networks means for backhauling network traffic emerged as a major consideration. Densification via small cell deployment has made wired solution cost prohibitive, leading to the adoption of spectrally efficient wireless solutions, namely, Integrated Access and Backhaul (IAB). This paper discusses the different options for IAB and focuses on novel solutions for in-band IAB using Full Duplex (FD) enabled nodes. Dynamically reconfigured beam steering antennas are presented as a means of passively suppressing Self-Interference (SI). Experimental results confirm up to 65 dB of SI cancellation in a harsh environment with obstacle. Finally, robust methods for managing FD practical considerations including timing and frequency offsets are presented, with experimental results confirming performance.

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Acknowledgments

The authors gratefully acknowledge support from the National Science Foundation under award number 1710746 .

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  1. University of California, Irvine, 4412 Engineering Hall, Irvine, CA, 92697, USA

    Sergey Shaboyan, Alireza S. Behbahani & Ahmed M. Eltawil

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  1. Sergey Shaboyan
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  2. Alireza S. Behbahani
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  3. Ahmed M. Eltawil
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Correspondence to Ahmed M. Eltawil.

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Shaboyan, S., Behbahani, A.S. & Eltawil, A.M. Practical Considerations for Full Duplex Enabled 5G Integrated Access and Backhaul. J Sign Process Syst 92, 465–474 (2020). https://doi.org/10.1007/s11265-019-01503-3

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  • DOI: https://doi.org/10.1007/s11265-019-01503-3

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