Performance Analysis of RF Self-Interference Cancellation in Full-Duplex Wireless Communications

Author

Zhaojun He ; Shihai Shao ; Ying Shen ; Chaojin Qing ; Youxi Tang

Author_Institution

Nat. Key Lab. of Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

3

Issue

4

fYear

2014

fDate

Aug. 2014

Firstpage

405

Lastpage

408

Abstract

An expression of radio frequency (RF) interference cancellation ratio (ICR) is derived for full duplex wireless communications, considering the amplitude and phase errors in Rician fading channel. The results show that the amplitude and phase estimation errors of line-of-sight (LOS) components are the significant factors that limited the performance when Rician factor K > 1. ICR 55 dB can be achieved when the standard deviation of LOS component relative amplitude error is less than 0.1% and the standard deviation of LOS component phase error is less than 0.1°.

Keywords

Rician channels; amplitude estimation; phase estimation; radiofrequency interference; RF self interference cancellation; Rician factor; Rician fading channel; amplitude estimation error; full-duplex wireless communications; line-of-sight components; phase estimation error; radio frequency interference cancellation ratio; standard LOS component phase error deviation; standard LOS component relative amplitude error deviation; Channel estimation; Delays; Phase estimation; Radio frequency; Rician channels; Standards; Wireless communication; Self-interference cancellation (SIC); full-duplex; interference cancellation ratio (ICR);

fLanguage

English

Journal_Title

Wireless Communications Letters, IEEE

Publisher

ieee

ISSN

2162-2337

Type

jour

DOI

10.1109/LWC.2014.2322097

Filename

6810788