A 15GHz Full Duplex System for Microwave Backhauling

Author

Meng Cai ; Qiao Liu ; Hongli Jiang ; Ping Cao ; Cheng Hong

Author_Institution

Huawei Technol. Co. Ltd., Shenzhen, China

fYear

2015

fDate

11-14 May 2015

Firstpage

1

Lastpage

5

Abstract

This paper proposes a 15 GHz full duplex system for microwave back-hauling. The self-interference components, i.e. the linear component, the non-linear component and the noise component are analyzed in this paper. A feedback chain is built to deal with the non-linearity and phase noise. A new analog cancellation method is proposed with respect to the multi-tap cancellation module in the radio frequency (RF). A smooth window based digital cancellation algorithm is proposed in frequency domain. Simulation results show that the proposed system is robust for different scenarios with 256 QAM. The analog or digital cancellation ability for the proposed 15 GHz full duplex system can reach 50 dB, which is one of the best up to now.

Keywords

interference suppression; radiocommunication; radiofrequency interference; 256-QAM; analog cancellation method; digital cancellation algorithm; feedback chain; frequency 15 GHz; full duplex system; microwave backhauling; multitap cancellation module; noise component; nonlinear component; self-interference component; Channel estimation; Interference; Microwave theory and techniques; Modulation; Phase noise; Radio frequency; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2015 IEEE 81st

Conference_Location

Glasgow

Type

conf

DOI

10.1109/VTCSpring.2015.7145589

Filename

7145589