TY - JOUR
T1 - Approximate Distributions of the Residual Self-Interference Power in Multi-tap Full-Duplex Systems
AU - Abusabah, Ayman T.
AU - Irio, Luis
AU - Oliveira, Rodolfo
AU - da Costa, Daniel B.
N1 - eu-repo/grantAgreement/EC/H2020/813391/EU#
PY - 2021/4
Y1 - 2021/4
N2 - In this letter, we investigate closed-form distributions to approximate the power of the residual Self-Interference (SI) due to: 1) uncanceled signals transmitted over multiple delay-taps, and 2) the presence of radio frequency and transceiver impairments, of an In-Band Full-duplex (IBFDX) wireless system. Starting with the distribution of the residual SI power for a single tap, we extend the analysis for multiple taps comparing two different solutions. The first one is based on the Welch-Satterthwaite (W-S) approximation, while the second is a moment-based approximation to an α-μ distribution. When compared to empirical results obtained by simulation, our work shows that the distribution of the residual SI power can be accurately represented by the W-S approximation when the uncertainty level of the fading in the different taps is low. However, for higher levels of uncertainty we show that the α-μ moment-based approximation is more accurate. A comparison between simulated and numerical results show the effectiveness of the proposed model.
AB - In this letter, we investigate closed-form distributions to approximate the power of the residual Self-Interference (SI) due to: 1) uncanceled signals transmitted over multiple delay-taps, and 2) the presence of radio frequency and transceiver impairments, of an In-Band Full-duplex (IBFDX) wireless system. Starting with the distribution of the residual SI power for a single tap, we extend the analysis for multiple taps comparing two different solutions. The first one is based on the Welch-Satterthwaite (W-S) approximation, while the second is a moment-based approximation to an α-μ distribution. When compared to empirical results obtained by simulation, our work shows that the distribution of the residual SI power can be accurately represented by the W-S approximation when the uncertainty level of the fading in the different taps is low. However, for higher levels of uncertainty we show that the α-μ moment-based approximation is more accurate. A comparison between simulated and numerical results show the effectiveness of the proposed model.
KW - In-Band Full-duplex Wireless Communications
KW - Residual Self-interference
KW - Stochastic Modeling.
UR - http://www.scopus.com/inward/record.url?scp=85097962628&partnerID=8YFLogxK
U2 - 10.1109/LWC.2020.3042754
DO - 10.1109/LWC.2020.3042754
M3 - Article
AN - SCOPUS:85097962628
SN - 2162-2337
VL - 10
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
IS - 4
M1 - 9281350
ER -