A New Code Family for QS-CDMA Visible Light Communication Systems

• Autorzy: Addad M. , Djebbari A.

Identyfikatory

DOI

10.26636/jtit.2018.124318

• Języki publikacji: EN

Abstrakty

EN

Visible light communication (VLC) is a promising technology for wireless communication networks. Optical code division multiple access (OCDMA) is a strong candidate for VLC-based applications. The predominant source of bit error in OCDMA is the multiple access interference (MAI). To eliminate MAI in synchronous OCDMA, zero cross correlation (ZCC) codes have been proposed. However, synchronization problems and multipath propagation introduce relative non-zero time delays. Therefore, the zero correlation zone (ZCZ) concept was introduced. In this paper, we propose a new method for generating ZCC codes. The proposed construction can accommodate any number of users with flexible Hamming weight. The numerical results obtained show that the proposed codes significantly reduce MAI, compared to ZCC, as well as ZCZ codes.

Słowa kluczowe

EN

CDMA; visible light communications; zero correlation zone; zero cross correlation

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2018
• Tom: nr 3
• Strony: 5--8
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Addad M.

• Faculty of Electrical Engineering, Djillali Liabes University of Sidi Bel Abbes, Sidi Bel Abbes, Algeria

autor

Djebbari A.

• Faculty of Electrical Engineering, Djillali Liabes University of Sidi Bel Abbes, Sidi Bel Abbes, Algeria

Bibliografia

• [1] K. Werfi et al., "Experimental demonstration of high-speed 4 x 4 imaging multi-CAP MIMO visible light communications", J. of Lightwave Technol., vol. 36, no. 10, pp. 1944-1951, 2018 (doi: 10.1109/JLT.2018.2796503).
• [2] A. K. Gupta and A. Chockalingam, "Performance of MIMO modulation schemes with imaging receivers in visible light communication", J. of Lightwave Technol., vol. 36, no. 10, pp. 1912-1927, 2018 (doi: 10.1109/JLT.2018.2795698).
• [3] V. T. B. Tram and M. Yoo, "Vehicle-to-vehicle distance estimation using a low-resolution camera based on visible light communications", IEEE Access, vol. 6, pp. 4521-4527, 2018 (doi: 10.1109/ACCESS.2018.2793306).
• [4] A. Naz, H. M. Asif, T. Umer, and B. S. Kim, "PDOA based in-door positioning using visible light communication", in IEEE Access, vol. 6, pp. 7557-7564, 2018 (doi: 10.1109/ACCESS.2018.2796623).
• [5] F. Miramirkhani and M. Uysal, "Visible light communication channel modeling for underwater environments with blocking and shadowing", IEEE Access, vol. 6, pp. 1082-1090, 2018 (doi: 10.1109/ACCESS.2017.2777883).
• [6] T. H. Abd, S. A. Aljunid, H. A. Fadhil, R. A. Ahmed, and N. Saad, "Developpment of a new code family based on SAC-OCDMA system with large cardinality for OCDMA network", Optic. Fiber Technol., vol. 17, no. 4, pp. 273-280, 2011 (doi: 10.1016/j.yofte.2011.04.002).
• [7] A. Garadi A. and A. Djebbari, "New technique for construction of a zero cross correlation code", Optik, vol. 123, no. 15, pp. 1382-1384, 2012 (doi: 10.1016/j.ijleo.2011.08.017).
• [8] L. Feng, J. Wang, R. Q. Qingyang, and L. Liu, "New design of optical zero correlation zone codes in quasi-synchronous VLC CDMA systems", EURASIP J. on Wireless Communic. and Network., vol. 2015, no. 1, pp. 1-7, 2015 (doi: 10.1186/s13638-015-0360-z).
• [9] M. Addad and A. Djebbari, "A ternary zero correlation zone sequence sets construction procedure", Turkish J. of Electr. Engin. and Comp. Sciences, vol. 25, no. 3, pp. 2455-2463, 2017 (doi: 10.3906/elk-1603-115).
• [10] M. Addad and A. Djebbari, "Suitable Sequences for Asynchronous MC-CDMA Systems", J. of Telecommun. and Inform. Technol., no. 3, pp. 9-13, 2018 (doi: 10.26636/jtit.2018.118217).

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).