|Table of Contents|

[1] Agha Yasir Ali, Zhang Zaichen, Abdeldime M.S.Abdelgader, Zong Baiqing, et al. Mitigation of inter-cell interference in visible light communication [J]. Journal of Southeast University (English Edition), 2015, 31 (4): 437-442. [doi:10.3969/j.issn.1003-7985.2015.04.002]

Mitigation of inter-cell interference in visible light communication()

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

2015 4
Research Field:
Information and Communication Engineering
Publishing date:


Mitigation of inter-cell interference in visible light communication
Agha Yasir Ali1 Zhang Zaichen1 Abdeldime M.S.Abdelgader1 Zong Baiqing2
1National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
2 ZTE Corporation, Shenzhen 518057, China
visible light communication inter-cell interference orthogonal pulses
This paper proposes the orthogonal and non-orthogonal schemes in the interference environments for visible light communication(VLC)systems. The proposed schemes pay attention to the case when different bit streams from multiple cells are simultaneously transmitted, which consequently causes inter-cell interference(ICI)and greatly deteriorates the bit error rate(BER)and channel capacity performance of the system. The performance of the new developed multi-cell system in indoor VLC systems is evaluated. The bipolar phase shift keying(BPSK)modulation scheme with orthogonal pulses(OPs)for multiple cells environments is employed to mitigate the ICI problem and improve the BER and channel capacity performances. Since the use of different OPs in each cell requires more number of OPs, which requires high bandwidth, OPs are reused at certain distances. Three different schemes, which are OPs, orthogonal and non-orthogonal pulses(NOP)reuse, are compared. This paper investigates the impact of using these schemes and compared their performances in the ICI environments. The BER and channel capacity using the proposed schemes are comprehensively examined. Simulation and theoretical results show that the OPs schemes are more effective in the interference areas of the room and significantly outperform NOP.


[1] Komine T, Nakagawa M. Fundamental analysis for visible-light communication system using LED lights[J]. IEEE Transactions on Consumer Electronics, 2004, 50(1): 100-107.
[2] Zeng L, O’Brien D, Minh H, et al. High data rate multiple input multiple output(MIMO)optical wireless communications using white LED lighting[J]. IEEE Journal on Selected Areas in Communications, 2009, 27(9): 1654-1662.
[3] Rahaim M, Little T. SINR analysis and cell zooming with constant illumination for indoor VLC networks [C]//The 2nd International Workshop on Optical Wireless Communications(IWOW). Newcastle Upon Tyne, UK, 2013: 20-24.
[4] Wang Z, Yu C, Zhong W D, et al. Performance of a novel LED lamp arrangement to reduce SNR fluctuation for multi-user visible light communication systems[J]. Optics express, 2012, 20(4): 4564-4573.
[5] Guerra-Medina M, Gonzalez O, Rojas-Guillama B, et al. Ethernet-OCDMA system for multi-user visible light communications[J]. Electronics Letters, 2012, 48(4): 227-228.
[6] Wu Z, Little T. Network solutions for the line-of-sight problem of new multi-user indoor free-space optical system[J]. IET Communications, 2012, 6(5): 525-531.
[7] Chen J, Hong Y, Wang Z. Performance of precoding multi-user MIMO indoor visible light communications [C]//IEEE Photonics Conference(IPC), WG4. Reston, USA, 2013: 541-542.
[8] Spencer Q H, Swindlehurst A L, Haardt M. Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels[J]. IEEE Transactions on Signal Processing, 2004, 52(2): 461-471.
[9] Spencer Q H, Peel C B, Haardt M. An introduction to the multi-user MIMO downlink[J]. IEEE Communications Magazine, 2004, 42(10): 60-67.
[10] Ali A Y, Zhang Z, Zong B. Pulse position and shape modulation for visible light communication system [C]//International Conference on Electromagnetics in Advanced Applications(ICEAA). Palm Beach, Aruba, 2014:546-549.
[11] Uddin M S, Cha J S, Kim J Y, et al. Mitigation technique for receiver performance variation of multi-color channels in visible light communication[J]. Sensors, 2011, 11(6): 6131-6144.
[12] Ali A Y, Zhang Z. Received power based area estimation for indoor visible light communication[C]//International Conference on Information & Intelligent Systems(ICIIS). Sousse, Tunisia, 2013:1-8.


Biographies: Agha Yasir Ali(1979—), male, graduate, aghayasirali@hotmail.com; Zhang Zaichen(corresponding author), male, doctor, professor, zczhang@seu.edu.cn.
Foundation items: The National High Technology Research and Development Program of China(863 Program)(No. 2013AA013601), the National Natural Science Foundation of China(No. 61223001), the Natural Science Foundation of Jiangsu Province(No.BK20140646), the Research Fund of National Mobile Communication Research Laboratory(No.2014A03, 2014B03, 2014B04), the Research Fund of Zhongxing Telecommunication Equipment Corporation, the Fundamental Research Funds of the Central Universities(No.2242014K40033), the United Creative Foundation of Jiangsu Province(No.BY2013095-1-18).
Citation: Agha Yasir Ali, Zhang Zaichen, Abdeldime M.S. Abdelgader, et al. Mitigation of inter-cell interference in visible light communication[J].Journal of Southeast University(English Edition), 2015, 31(4):437-442.[doi:10.3969/j.issn.1003-7985.2015.04.002]
Last Update: 2015-12-20