Residual Self-Interference Analysis for Full-Duplex OFDM Transceivers Under Phase Noise and I/Q Imbalance

In this letter, we investigate the detrimental effects of phase noise (PN) and in-phase/quadrature (I/Q) imbalance (IQI) on full-duplex OFDM transceivers. In particular, we derive a closed-form expression for the average residual self-interference (SI) power and show its functional dependence on the...

Full description

Saved in:
Bibliographic Details
Published in:IEEE communications letters 2017-02, Vol.21 (2), p.314-317
Main Authors: Samara, L., Mokhtar, M., Ozdemir, O., Hamila, R., Khattab, T.
Format: Article
Language:English
Subjects:
Channel estimation
Closed form solutions
Computer simulation
Exact solutions
Full-duplex radios
I/Q Imbalance
Interference
OFDM
Oscillators
Phase noise
Radio frequency
Radio transceivers
Transceivers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this letter, we investigate the detrimental effects of phase noise (PN) and in-phase/quadrature (I/Q) imbalance (IQI) on full-duplex OFDM transceivers. In particular, we derive a closed-form expression for the average residual self-interference (SI) power and show its functional dependence on the parameters of the radio- frequency impairments and channel taps' power. Moreover, for perfect digital-domain cancellation, we show that the effects of PN and IQI can be approximately decoupled for small PN and IQI levels and the average residual SI is linearly proportional to the I/Q image rejection ratio and PN 3-dB bandwidth. Our numerical simulations validate the accuracy of the derived closed-form expressions and our findings.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2016.2620431