Capacity Analysis of OAM Multiplexing System Based on Various Detection Schemes

Abstract:

Orbital angular momentum of vortex electromagnetic waves has the potential to overwhelmingly increase the system capacity for radio communications. To explore the performance of the novel multiplexing system, the influence of both detection schemes at the receiving side and power allocation methods at the transmitting side on channel capacity is investigated firstly by exploiting zero-forcing (ZF) and minimum mean square error (MMSE) detection schemes and water-filling algorithm. It is found finally that MMSE is superior to ZF generally, which conforms to the MIMO theory. And for rank-deficient channel, optimal power allocation will play a greater role to enhance system capacity.

• Periodical: Applied Mechanics and Materials (Volume 850)
• Pages: 105-111
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.850.105
• Online since: August 2016
• Authors: Li An Bian*, Pei Guo Liu, Zhao Wen Zhuang, Gang Ou, Wei Dong Hu, Li Gang Li
• Keywords: Minimum Mean Square Error Detection, OAM Modes, Power Allocation, Zero-Forcing Detection

References

[1] F. Tamburini, E. Mari, A. Sponselli et al, Encoding many channels on the same frequency through radio vorticity: first experimental test, Trans. on New Journal of Physics, 14(2012) 1343-1346.

DOI: 10.1088/1367-2630/14/3/033001

[2] Yan Yan, Guodong Xie, Martin P. J. Lavery et al, High-capacity millimeter-wave communications with orbital angular momentum multiplexing, Nature Communications, 2014, 1-8.

[3] Y. S. Jiang, Y. T. He, and F. Li, Electromagnetic orbital angular momentum in remote sensing, Proc. of PIERS Proceedings. Moscow, Russia: IEEE Press, (2009).

[4] Tiezhu Yuan, Hongqiang Wang, Yuliang Qin et al, Electromagnetic vortex imaging using uniform concentric circular arrays, IEEE Antennas and Wireless Propagation Letters, (2015).

DOI: 10.1109/lawp.2015.2490169

[5] Yuqing Yuan, Zhaoyang Zhang, Ji Cang et al, Capacity analysis of UCA-based OAM multiplexing communication system, Proc. of Wireless Communications and Signal Processing. Nanjing, China: IEEE Press, (2015).

DOI: 10.1109/wcsp.2015.7341308

[6] B. Thide, H. Ten, J. Sjoholm et al, On the utilization of photon orbital angular momentum in the low-frequency radio domain, Phys. Rev. Lett., 99(2007) 1-5.

[7] Kwasi A. O., Kuang Yu-jun, Jerry J. K. et al, Mode combination in an ideal wireless OAM-MIMO multiplexing system, IEEE Wireless Communication Letters, (2015).

DOI: 10.1109/lwc.2015.2434375

[8] Kwasi A. O. and Kuang Yu-jun, Performance of an ideal wireless orbital angular momentum communication system using multiple-input multiple-output techniques, Proc. of Telecommunications and Multimedia. Heraklion, Greece: IEEE Press, (2014).

DOI: 10.1109/temu.2014.6917751

[9] Kwasi A. Opare, Yujun Kuang, Jerry J. Kponyo et al, The degrees of freedom in wireless line-of sight OAM multiplexing systems using a circular array of receiving antennas, Proc. of Advanced Computing and Communication Technologies. Haryana, India: IEEE Press, (2015).

DOI: 10.1109/acct.2015.52

[10] Yingjie Zhang, Wei Feng and Ning Ge, On the Restriction of utilizing orbital angular momentum in radio communications, Proc. of Communications and Networking. Guilin, China: IEEE Press, (2013).

DOI: 10.1109/chinacom.2013.6694604

[11] Dhananjay A G, Rohit U N and Arogyaswami P, Selecting an optimal set of transmit antennas for a low rank matrix channel, Proc. of Acoustics, Speech and Signal Processing. Istanbul, Turkey: IEEE Press, (2000).

DOI: 10.1109/icassp.2000.861082

[12] Cho Yong-soo, Jaekwon K, Yang Won-young et al, MIMO-OFDM wireless communication with MATLAB, Beijing: Electronic Industry Press, (2013).

[13] Zhang Xinying, Kung Sunyuan. Capacity analysis for parallel and sequential MIMO equalizers[J]. IEEE Trans. on Signal Processing, 2003, 51(11): 2989-3002.

DOI: 10.1109/tsp.2003.818151

[14] Hua Ling and Qin Li-xin. Fast antenna selection algorithm based on Sorenson similarity coefficient[J]. Computer Engineering, 2011, 37 (16): 108-110.

[15] Zhang Yan-yun, Zhu Yi-jun, Zhang Shui-lian et al. New zero-forcing precoding scheme in MIMO systems[J]. Journal of Information Engineering University, 2012, 37(1): 32-36.

[16] M. Oldoni, F. Spinello, E. Mari et al, Space-division demultiplexing in orbital-angular-momentum based MIMO radio systems, Trans. on Antennas and Propagation, vol. 63, pp.4582-4587, Oct. (2015).

DOI: 10.1109/tap.2015.2456953