Transmitter leakage analysis when operating USRP (N210) in duplex mode

Author

Chandran, Arul Mathi Maran ; Zawodniok, Maciej

Author_Institution

Dept. of Electr. & Comput. Eng., Missouri Univ. of Sci. & Technol., Rolla, MO, USA

fYear

2015

fDate

11-14 May 2015

Firstpage

340

Lastpage

345

Abstract

The main challenge of operating a radio in full duplex mode, is the direct feedback from its transmission to its reception which is the self interference. However, the internal leakage within the radio has the potential to distort the received signal. This paper presents the measured leakage observed in N210 one of the Universal Serial Radio Peripheral (USRP) family of devices. Also, suppression mechanism has been evaluated in both in hardware and software.

Keywords

feedback; interference suppression; radio reception; radio transmitters; radiofrequency interference; N210; USRP; direct feedback; full-duplex mode; radio reception; self interference suppression mechanism; transmitter leakage analysis; universal serial radio peripheral; Capacitors; Couplings; Gain; Radio frequency; Radio transmitters; Receivers; Transmitting antennas; GNU Radio; Single Pole Double Throw (SPDT); Software Defined Radio (SDR); Transmitter leakage; Universal Serial Radio Peripheral (USRP); self interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2015 IEEE International

Conference_Location

Pisa

Type

conf

DOI

10.1109/I2MTC.2015.7151291

Filename

7151291