Widely Linear Digital Self-Interference Cancellation in Direct-Conversion Full-Duplex Transceiver

This paper addresses the modeling and cancellation of self-interference in full-duplex direct-conversion radio transceivers, operating under practical imperfect radio frequency (RF) components. First, detailed self-interference signal modeling is carried out, taking into account the most important RF imperfections, namely, transmitter power amplifier nonlinear distortion as well as transmitter and receiver IQ mixer amplitude and phase imbalances. The analysis shows that after realistic antenna isolation and RF cancellation, the dominant self-interference waveform at the receiver digital baseband can be modeled through a widely linear transformation of the original transmit data, opposed to classical purely linear models. Such widely linear self-interference waveform is physically stemming from the transmitter and receiver IQ imaging and cannot be efficiently suppressed by classical linear digital cancellation. Motivated by this, novel widely linear digital self-interference cancellation processing is then proposed and formulated, combined with efficient parameter estimation methods. Extensive simulation results demonstrate that the proposed widely linear cancellation processing clearly outperforms the existing linear solutions, hence enabling the use of practical low-cost RF front ends utilizing IQ mixing in full-duplex transceivers.

[1]  Dennis R. Morgan,et al.  A robust digital baseband predistorter constructed using memory polynomials , 2004, IEEE Transactions on Communications.

[2]  Taneli Riihonen,et al.  Large-system analysis of rate regions in bidirectional full-duplex MIMO link: Suppression versus cancellation , 2013, 2013 47th Annual Conference on Information Sciences and Systems (CISS).

[3]  Ashutosh Sabharwal,et al.  Full-duplex wireless communications using off-the-shelf radios: Feasibility and first results , 2010, 2010 Conference Record of the Forty Fourth Asilomar Conference on Signals, Systems and Computers.

[4]  Philip Levis,et al.  Practical, real-time, full duplex wireless , 2011, MobiCom.

[5]  Takehiko Toyoda,et al.  Fully differential direct conversion receiver for W-CDMA using an active harmonic mixer , 2003, IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, 2003.

[6]  Yiming Ma,et al.  A Method for Broadband Full-Duplex MIMO Radio , 2012, IEEE Signal Processing Letters.

[7]  Philip Schniter,et al.  Full-Duplex Bidirectional MIMO: Achievable Rates Under Limited Dynamic Range , 2012, IEEE Transactions on Signal Processing.

[8]  P. Uthansakul,et al.  Digital and RF interference cancellation for single-channel full-duplex transceiver using a single antenna , 2013, 2013 10th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology.

[9]  Taneli Riihonen,et al.  Analog and digital self-interference cancellation in full-duplex MIMO-OFDM transceivers with limited resolution in A/D conversion , 2012, 2012 Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers (ASILOMAR).

[10]  Charles Cox,et al.  Demonstration of a single-aperture, full-duplex communication system , 2013, 2013 IEEE Radio and Wireless Symposium.

[11]  Taneli Riihonen,et al.  Effect of oscillator phase noise and processing delay in full-duplex OFDM repeaters , 2012, 2012 Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers (ASILOMAR).

[12]  Pascal Chevalier,et al.  Widely linear estimation with complex data , 1995, IEEE Trans. Signal Process..

[13]  Ashutosh Sabharwal,et al.  Passive Self-Interference Suppression for Full-Duplex Infrastructure Nodes , 2013, IEEE Transactions on Wireless Communications.

[14]  Ashutosh Sabharwal,et al.  Pushing the limits of Full-duplex: Design and Real-time Implementation , 2011, ArXiv.

[15]  Ahmed M. Eltawil,et al.  Self-interference cancellation with nonlinear distortion suppression for full-duplex systems , 2013, 2013 Asilomar Conference on Signals, Systems and Computers.

[16]  Dinan Gunawardena,et al.  Rethinking Indoor Wireless Mesh Design: Low Power, Low Frequency, Full-Duplex , 2010, 2010 Fifth IEEE Workshop on Wireless Mesh Networks.

[17]  Philip Schniter,et al.  Hardware phenomenological effects on cochannel full-duplex MIMO relay performance , 2012, 2012 Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers (ASILOMAR).

[18]  Taneli Riihonen,et al.  Full-Duplex Transceiver System Calculations: Analysis of ADC and Linearity Challenges , 2014, IEEE Transactions on Wireless Communications.

[19]  Ashutosh Sabharwal,et al.  Understanding the impact of phase noise on active cancellation in wireless full-duplex , 2012, 2012 Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers (ASILOMAR).

[20]  Ross D. Murch,et al.  Full-Duplex Wireless Communication Using Transmitter Output Based Echo Cancellation , 2011, 2011 IEEE Global Telecommunications Conference - GLOBECOM 2011.

[21]  Ashutosh Sabharwal,et al.  Experiment-Driven Characterization of Full-Duplex Wireless Systems , 2011, IEEE Transactions on Wireless Communications.

[22]  Taneli Riihonen,et al.  Analysis of Oscillator Phase-Noise Effects on Self-Interference Cancellation in Full-Duplex OFDM Radio Transceivers , 2014, IEEE Transactions on Wireless Communications.

[23]  Philip Levis,et al.  Achieving single channel, full duplex wireless communication , 2010, MobiCom.

[24]  Sampath Rangarajan,et al.  MIDU: enabling MIMO full duplex , 2012, Mobicom '12.

[25]  F.M. Ghannouchi,et al.  On The Sensitivity of RF Transmitters' Memory Polynomial Model Identification to Delay Alignment Resolution , 2008, IEEE Microwave and Wireless Components Letters.

[26]  Ahmed M. Eltawil,et al.  Rate Gain Region and Design Tradeoffs for Full-Duplex Wireless Communications , 2013, IEEE Transactions on Wireless Communications.

[27]  Ashutosh Sabharwal,et al.  Asynchronous full-duplex wireless , 2012, 2012 Fourth International Conference on Communication Systems and Networks (COMSNETS 2012).

[28]  Lauri Anttila,et al.  Digital Front-End Signal Processing with Widely-Linear Signal Models in Radio Devices , 2011 .

[29]  N. K. Shankaranarayanan,et al.  Design and Characterization of a Full-Duplex Multiantenna System for WiFi Networks , 2012, IEEE Transactions on Vehicular Technology.

[30]  Sachin Katti,et al.  Full duplex radios , 2013, SIGCOMM.

[31]  L. Scharf,et al.  Statistical Signal Processing of Complex-Valued Data: The Theory of Improper and Noncircular Signals , 2010 .

[32]  Jaehyeong Kim,et al.  A Generalized Memory Polynomial Model for Digital Predistortion of RF Power Amplifiers , 2006, IEEE Transactions on Signal Processing.

[33]  Qizheng Gu,et al.  RF System Design of Transceivers for Wireless Communications , 2005 .

[34]  Jussi Ryynanen,et al.  A 2-GHz wide-band direct conversion receiver for WCDMA applications , 1999, IEEE J. Solid State Circuits.

[35]  M. E. Knox,et al.  Single antenna full duplex communications using a common carrier , 2012, WAMICON 2012 IEEE Wireless & Microwave Technology Conference.

[36]  Mikko Valkama,et al.  Cancellation of power amplifier induced nonlinear self-interference in full-duplex transceivers , 2013, 2013 Asilomar Conference on Signals, Systems and Computers.

[37]  Kenneth E. Kolodziej,et al.  Optimal tuning of analog self-interference cancellers for full-duplex wireless communication , 2012, 2012 50th Annual Allerton Conference on Communication, Control, and Computing (Allerton).

[38]  Björn E. Ottersten,et al.  Full-Duplex Cooperative Cognitive Radio with Transmit Imperfections , 2013, IEEE Transactions on Wireless Communications.

[39]  Jong-Ho Lee,et al.  Self-Interference Cancelation Using Phase Rotation in Full-Duplex Wireless , 2013, IEEE Transactions on Vehicular Technology.