Performance of DSSS Signal Transmission with SCM over Low-Frequency MMF Passbands
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Abstract
The transmission of a high data rate signal over low-frequency passbands of multimode fibers is studied in this paper. The subcarrier multiplexing (SCM) technique is applied to mitigate the frequency-selective nature of the passbands, at which many nulls can degrade the signal transmission. The subcarrier frequencies must be chosen appropriately, especially for some low-frequency passbands; otherwise, poorly received subcarrier signals will be obtained, affecting the entire transmission. Rather than transmitting many subcarrier signals over these passbands, the direct sequence spread spectrum (DSSS) technique can be adopted. In this work, a high data rate signal is transmitted over 1 km of multimode fiber using the 3-dB modal band and six other low-frequency passbands. The signal is separated into four sub-signals transmitted over four different channels: the 3-dB modal band, two low-frequency passbands, and one passband (containing four low-frequency passbands). In the last passband, the sub-signal is transmitted using the DSSS, while the other sub-signals are transmitted through amplitude shift keying (ASK) modulation. The performance of the system is determined using the bit error rate (BER). The findings reveal that by applying the DSSS to some low-frequency passbands, robustness is obtained in the subcarrier frequency for use in the DSSS passband. A BER lower than 10-9 with a total data rate of 600 Mbps is achieved. This data rate is three times higher than the data rate obtained by the 3-dB modal band. This performance is achieved without applying any error-correction code.
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References
A. Rahim et al., “16-channel O-OFDM demultiplexer in silicon photonics,” in Optical Fiber Communication Conference, 2014.
C.-T. Tsai et al., “Multi-mode VCSEL chip with high-indium-density InGaAs/AlGaAs quantum-well pairs for QAM-OFDM in multi-mode fiber,” IEEE Journal of Quantum Electronics, vol. 53, no. 4, pp. 1–8, Aug. 2017.
K. Nagashima, T. Kise, Y. Ishikawa, and H. Nasu, “A record 1-km MMF NRZ 25.78-Gb/s error-free link using a 1060-nm DIC VCSEL,” IEEE Photonics Technology Letters, vol. 28, no. 4, pp. 418–420, Feb. 2016.
K. Benyahya et al., “High-speed bi-directional transmission over multimode fiber link in IM/DD systems,” Journal of Lightwave Technology, vol. 36, no. 18, pp. 4174–4180, Sep. 2018.
J. Patmanee and S. Kanprachar, “Analysis of the multimode fiber at low-frequency passband region,” Journal of Telecommunication, Electronic and Computer Engineering, vol. 9, no. 2-6, pp. 37–41, 2017.
J. Patmanee, C. Pinthong, and S. Kanprachar, “Performance of subcarrier multiplexing transmission over multimode fiber at low-frequency passbands,” in 2017 8th International Conference of Information and Communication Technology for Embedded Systems (IC-ICTES), 2017, pp. 160–164.
S. Kanprachar, C. Pinthong, and J. Patmanee, “BER performance of multimode fiber low-frequency passbands in subcarrier multiplexing transmission,” in Third International Conference on Photonics Solutions (ICPS2017), 2018.
J. Patmanee and S. Kanprachar, “Performance of signal transmission via subcarrier multiplexing with 4-ASK over low-frequency passbands of multimode fibers,” in 2019 58th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE), Hiroshima, Japan, 2019, pp. 623–628.
X. Zuo, D. Wang, and R. Yao, “On performance of MRC-FDE UWB system with direct sequence spreading,” in 2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013), 2013.
Y. R. Zheng, Z. Yang, M. Yue, B. Han, Z. Chen, and J. Wang, “DSP implementation of direct-sequence spread spectrum underwater acoustic modems with networking capability,” in 2014 Oceans - St. John’s, 2014.
S. Wang, J. An, Y. Ren, T. Wang, and X. Bu, “Compressed receiver for multipath DSSS signals,” IEEE Communications Letters, vol. 18, no. 8, pp. 1359–1362, Aug. 2014.
A. Pottier, F.-X. Socheleau, and C. Laot, “Qualityof- service satisfaction games for noncooperative underwater acoustic communications,” IEEE Access, vol. 6, pp. 21 467–21 481, 2018.
J. Harshan and Y.-C. Hu, “Cognitive radio from hell: Flipping attack on direct-sequence spread spectrum,” in 2018 IEEE Wireless Communications and Networking Conference (WCNC), 2018.
P. I. Puzyrev, V. Y. Shein, and V. V. Erohin, “Orthogonal multiple chirp modulation for tasks of robust data transmission,” in 2018 19th International Conference of Young Specialists on Micro/ Nanotechnologies and Electron Devices (EDM), 2018, pp. 6403–6408.
L. W. Couch, Digital and Analog Communication Systems, 8th ed. New York, USA: Pearson, 2013, pp. 358–360.
R. E. Ziemer and W. H. Tranter, Principles of Communications: Systems, Modulation, and Noise, 7th ed. New York, USA: John Wiley & Sons, 2014, pp. 528–536.
A. Goldsmith, Wireless Communications. Cambridge, UK: Cambridge University Press, 2005, pp. 409–419.
W. Stallings, Data and Computer Communications, 10th ed. New York, USA: Pearson, 2013, p. 179.
G. Keiser, Optical Fiber Communications, 5th ed. Singapore: McGraw-Hill Education, 2015, pp. 285–286.
M. Velichko and O. Nanii, “Increase of transmission speed in access networks using 4-ary ASK directly modulated lasers,” in 2006 International Workshop on Laser and Fiber-Optical Networks Modeling, 2006, pp. 202–205.