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基于容量和發(fā)射機預(yù)調(diào)零的全雙工天線位置優(yōu)化研究

吳飛,  邵士海,  唐友喜

吳飛, 邵士海, 唐友喜. 基于容量和發(fā)射機預(yù)調(diào)零的全雙工天線位置優(yōu)化研究[J]. 電子與信息學(xué)報, 2016, 38(9): 2215-2220. doi: 10.11999/JEIT151385
引用本文: 吳飛, 邵士海, 唐友喜. 基于容量和發(fā)射機預(yù)調(diào)零的全雙工天線位置優(yōu)化研究[J]. 電子與信息學(xué)報, 2016, 38(9): 2215-2220. doi: 10.11999/JEIT151385
WU Fei, SHAO Shihai, TANG Youxi. Location Optimization of Antenna Based on the Capacity and Transmit Interference Pre-nulling in Full-duplex[J]. Journal of Electronics & Information Technology, 2016, 38(9): 2215-2220. doi: 10.11999/JEIT151385
Citation: WU Fei, SHAO Shihai, TANG Youxi. Location Optimization of Antenna Based on the Capacity and Transmit Interference Pre-nulling in Full-duplex[J]. Journal of Electronics & Information Technology, 2016, 38(9): 2215-2220. doi: 10.11999/JEIT151385

基于容量和發(fā)射機預(yù)調(diào)零的全雙工天線位置優(yōu)化研究

doi: 10.11999/JEIT151385 cstr: 32379.14.JEIT151385
基金項目: 

國家自然科學(xué)基金(61471108, U1035002/L05, 61001087，61101034, 61271164, 61301154)，國家科技重大專項(2014ZX 03003001-002, 2012ZX03003010-003, 2011ZX03001-006-01), 國家863項目(2014AA01A704)

Location Optimization of Antenna Based on the Capacity and Transmit Interference Pre-nulling in Full-duplex

Funds: 

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)

  • 摘要: 同時同頻全雙工系統(tǒng)中，考慮直射路徑自干擾信號抵消，通常采用發(fā)射機天線預(yù)調(diào)零技術(shù)，但是該方法不僅會降低遠端接收機的信號功率，還會形成零陷區(qū)域。產(chǎn)生此問題的主要原因是沒有考慮本地接收機天線工作在發(fā)射機天線的近場區(qū)域，而采用平面波模型進行設(shè)計。因此該文采用具有更高自由度的球面波模型，在保證發(fā)射機預(yù)調(diào)零的情況下，以零陷區(qū)容量最大化為原則，優(yōu)化本地接收機天線位置，給出了最優(yōu)位置的求解方法。仿真結(jié)果表明，在保證預(yù)調(diào)零的情況下，能夠減小零陷區(qū)域功率衰減值；當發(fā)射機天線間隔為半個波長時，與平面波優(yōu)化方式相比，零陷區(qū)系統(tǒng)容量隨著信道相關(guān)性增加而有一定增加。
    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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  • 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.
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    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.
    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.
    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.
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    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.
    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.
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出版歷程
  • 收稿日期:  2015-12-08
  • 修回日期:  2016-05-10
  • 刊出日期:  2016-09-19

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