Self-Interference Cancellation-Based Mutual-Coupling Model for Full-Duplex Single-Channel MIMO Systems

The challenge of a full-duplex single-channel system is the method to transmit and receive signals simultaneously at the same time and on the same frequency. Consequently, a critical issue involved in such an operation is the resulting self-interference. Moreover, for MIMO system, the full-duplex single-channel system is subjected to the very strong self-interference signals due to multiple transmitting and receiving antennas. So far in the pieces of literature, there have not been any suitable techniques presented to reduce the self-interference for full-duplex single-channel MIMO systems. This paper initially proposes the method to cancel the self-interference by utilizing the mutual-coupling model for self-interference cancellation. The interference can be eliminated by using a preknown interference, that is, the mutual-coupling signals. The results indicate that the channel capacity performance of the proposed technique can significantly be improved due to the reduction of the self-interference power. The measurement results indicate that the proposed MIMO system can suppress the self-interference and mutual-interference signals with the reduction of 31 dB received power.

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

[2]  Emre Telatar,et al.  Capacity of Multi-antenna Gaussian Channels , 1999, Eur. Trans. Telecommun..

[3]  Peter Larsson,et al.  MIMO On-Frequency Repeater with Self-Interference Cancellation and Mitigation , 2009, VTC Spring 2009 - IEEE 69th Vehicular Technology Conference.

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

[5]  Na Li,et al.  Digital Interference Cancellation in Single Channel, Full Duplex Wireless Communication , 2012, 2012 8th International Conference on Wireless Communications, Networking and Mobile Computing.

[6]  Shiyang Lu,et al.  Optimizing MIMO Channel Capacities Under the Influence of Antenna Mutual Coupling , 2008, IEEE Antennas and Wireless Propagation Letters.

[7]  R. H. M. Hafez,et al.  A novel spatial modulation using MIMO spatial multiplexing , 2013, 2013 1st International Conference on Communications, Signal Processing, and their Applications (ICCSPA).

[8]  Matthew R. McKay,et al.  Transmitter optimization for MIMO systems with mutual coupling at high SNR , 2011, 2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR).

[9]  Joon Ho Cho,et al.  Capacity of MIMO wireless channel with full-duplex amplify-and-forward relay , 2009, 2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications.

[10]  H. Luetkepohl.  The Handbook of Matrices , 1996 .

[11]  Dinan Gunawardena,et al.  Efficient and fair MAC for wireless networks with self-interference cancellation , 2011, 2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks.

[12]  Sampath Rangarajan,et al.  The case for antenna cancellation for scalable full-duplex wireless communications , 2011, HotNets-X.

[13]  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.

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

[15]  Taneli Riihonen,et al.  Spatial loop interference suppression in full-duplex MIMO relays , 2009, 2009 Conference Record of the Forty-Third 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]  Hongyu Wang,et al.  Channel capacity analysis on cooperative MIMO with antenna spatial correlation and multi-path , 2011, 2011 6th International ICST Conference on Communications and Networking in China (CHINACOM).

[18]  Sampath Rangarajan,et al.  Wideband digital cancellation for full-duplex communications , 2012, 2012 Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers (ASILOMAR).

[19]  Matthew R. McKay,et al.  Capacity of MIMO Systems With Mutual Coupling: Transmitter Optimization With Dual Power Constraints , 2012, IEEE Transactions on Signal Processing.

[20]  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.

[21]  HouBao Shi,et al.  The effect of mutual coupling on the channel performance of MIMO communication system , 2012, ISAPE2012.

[22]  M.E. Bialkowski,et al.  Effect of mutual coupling on the interference rejection capabilities of linear and circular arrays in CDMA systems , 2004, IEEE Transactions on Antennas and Propagation.