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Location Optimization of Antenna Based on the Capacity and Transmit Interference Pre-nulling in Full-duplex |
WU Fei SHAO Shihai TANG Youxi |
(National Key Laboratory of Communication, University of Electronic Science and Technology of China, Chengdu 611731, China) |
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Abstract Considering the line-of-sight path interference cancellation in Co-time and Co-frequency Full-Duplex (CCFD), the pre-nulling technique of transceiver is usually used. However, this method forms a subsidence zone of signal power for the remote receiver. The main reason is that the local receiver antenna is not considered in the near field of the transmitter antenna, and the design is based on the plane wave model. In this paper, the spherical wave assumption is adopted, and the local receiver antenna position is optimized by the subsidence capacity maximum while guaranteeing transmitter pre-nulling of self-interference. The procedure of calculating the optimal local receive antenna position is also given. The simulation results show that when the transmitter spacing is half wavelength, the subsidence capacity is improved with the increase of the channel correlation compared with the antennas placement optimization by the plane wave assumption.
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Received: 08 December 2015
Published: 04 July 2016
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Fund: The National Natural Science Foundation of China (61471108, U1035002/L05, 61001087, 61101034, 61271164, 61301154), The National Science and Technology Major Project of China (2014ZX03003001-002, 2012ZX03003010-003, 2011ZX03001- 006-01), The National 863 Program of China (2014AA01A704) |
Corresponding Authors:
WU Fei
E-mail: qwufei@139.com
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[1] |
ZHANG Z S, CHAI X M, LONG K P, et al. Full duplex techniques for 5G networks: self-interference cancellation, protocol design, and relay selection[J]. IEEE Communications Magazine, 2015, 53(5): 128-137. doi: 10.1109/MCOM.2015.7105651.
|
[2] |
AHMED E and ELTAWIL A M. All-digital self-interference cancellation technique for full-duplex systems[J]. IEEE Transactions on Wireless Communications, 2015, 14(7): 3519-3532. doi: 10.1109/TWC.2015.2407876.
|
[3] |
KORPI D, RIIHONENY T, and VALKAMA M. Achievable rate regions and self-interference channel estimation in hybrid full-duplex /half-duplex radio links[C]. Proceedings of 2015 49th Annual Conference on Information Sciences and Systems, Baltimore, USA, 2015: 1-6. doi: 10.1109/CISS. 2015.7086821.
|
[4] |
TAGHIZADEH O and MATHAR R. Interference mitigation via power optimization schemes for full-duplex networking[C]. Proceedings of 2015 19th International ITG Workshop on Smart Antennas, Ilmenau, Germany, 2015: 1-7.
|
[5] |
LI S H and MURCH R D. An investigation into baseband techniques for single-channel full-duplex wireless communication systems[J]. IEEE Transactions on Wireless Communications, 2014, 13(9): 4794-4806. doi: 10.1109/ TWC.2014.2341569.
|
[6] |
CHUN B, JEONG E R, JOUNG J, et al. Pre-nulling for self-interference suppression in full-duplex relays[C]. Proceedings of 2009 Annual Summit and Conference of Asia-Pacific Signal and Information Processing Association, Sapporo, Japan, 2009: 91-97.
|
[7] |
RIIHONEN T, WERNER S, and WICHMAN R. Residual self-interference in full-duplex MIMO relays after null-space projection and cancellation[C]. Proceedings of 2010 Conference Record of the Forty Fourth Asilomar Conference on Signals, Systems and Computers. Pacific Grove, USA, 2010: 653-657. doi: 10.1109/ACSSC.2010.5757642.
|
[8] |
JOHNSTON S E and FIORE P D. Full-duplex communication via adaptive nulling[C]. Proceedings of 2013 Asilomar Conference on Signals, Systems and Computers, Pacific Grove, USA, 2013: 1628-1631. doi: 10.1109/ACSSC. 2013.6810574.
|
[9] |
CHOI J I, JAIN M, SRINIVASAN K, et al. Achieving single channel, full duplex wireless communication[C]. Proceedings of the Sixteenth Annual International Conference on Mobile Computing and Networking, New York, USA, 2010: 1-12. doi: 10.1145/1859995.1859997.
|
[10] |
KHOJASTEPOUR M A, SUNDARESAN K, RANGARAJAN S, et al. The case for antenna cancellation for scalable full-duplex wireless communications[C]. Proceedings of the 10th ACM Workshop on Hot Topics in Networks, New York, USA, 2011: No.17. doi: 10.1145/ 2070562.2070579.
|
[11] |
ARYAFAR E, KHOJASTEPOUR M A, SUNDARESAN K, et al. MIDU: Enabling MIMO full duplex[C]. Proceedings of the 18th Annual International Conference on Mobile Computing and Networking, New York, USA, 2012: 257-268. doi: 10.1145/ 2348543.2348576.
|
[12] |
KAO J W, SHIH Y Y, PANG A C, et al. Radio resource allocation for D2D-assisted Full-duplex cellular networks[C]. Proceedings of 2015 Seventh International Conference on Ubiquitous and Future Networks, Sapporo, Japan, 2015: 721-726. doi: 10.1109/ICUFN.2015.7182638.
|
[13] |
FOROOZANFARD E, FRANEK O, TATOMIRESCU A, et al. Full-duplex MIMO system based on antenna cancellation technique[J]. Electronics Letters, 2014, 50(16): 1116-1117. doi: 10.1049/el.2014.1650.
|
[14] |
TSAKALAKI E, FOROOZANFARD E, DE C E, et al. A 2-order MIMO full-duplex antenna system[C]. Proceedings of 2014 8th European Conference on Antennas and Propagation, Hague, Holland, 2014: 2546-2550. doi: 10.1109/EuCAP. 2014.6902340.
|
[15] |
LI L, JOSIAM K, and TAORI R. Feasibility study on full-duplex wireless millimeter-wave systems[C]. Proceedings of International Conference on Acoustics, Speech and Signal Processing, Florence, Italy, 2014: 2769-2773. doi: 10.1109/ ICASSP.2014.6854104.
|
[16] |
MASMOUDI A and LE-NGOC T. A maximum-likelihood channel estimator for self-interference cancellation in full-duplex systems[J]. IEEE Transactions on Vehicular Technology, 2015. doi:10.1109/TVT.2015.2461006.
|
[17] |
ERWIN K. Advanced Engineering Mathematics (10th Edition)[M]. New York: John Wiley & Sons, 2010: 194-205.
|
|
|
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