Impact of the Amount of RF Self-interference Cancellation on Digital Self-interference Cancellation in Full Duplex Communications

DOI

10.2991/cnct-16.2017.25How to use a DOI?

Keywords

Full-duplex (FD), digital self-interference cancellation

Abstract

The self-interference to noise ratio in digital domain decreases as the amount of RF self-interference cancellation increases in full-duplex (FD) communications. The amount of digital self-interference cancellation decreases as the self-interference power in digital domain decreases. The impact of the amount of RF self-interference cancellation on digital self-interference cancellation is analyzed in full-duplex communications. The digital self-interference cancellation analyzed in this paper is based on LS channel estimation. It is shown that the decrease in the amount of digital self-interference cancellation is always less than the increase in RF self-interference cancellation when applying digital cancellation after RF cancellation in full-duplex communications. Applying digital cancellation after RF cancellation is more effective when RF cancellation delivers poor suppression. The performance of digital self-interference cancellation will degrade when RF cancellation achieves large suppression.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Si LI
AU  - Hong-tao LU
AU  - Shi-hai SHAO
AU  - You-xi TANG
PY  - 2016/12
DA  - 2016/12
TI  - Impact of the Amount of RF Self-interference Cancellation on Digital Self-interference Cancellation in Full Duplex Communications
BT  - Proceedings of the International Conference on Computer Networks and Communication Technology (CNCT 2016)
PB  - Atlantis Press
SP  - 186
EP  - 195
SN  - 2352-538X
UR  - https://doi.org/10.2991/cnct-16.2017.25
DO  - 10.2991/cnct-16.2017.25
ID  - LI2016/12
ER  -