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Scintillation reduction using multi-beam propagating technique in atmospheric WOCDMA system

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Abstract

We propose employing multi-beam propagating technology to mitigate the influence of atmospheric scintillation to the wireless optical code division multiple access (WOCDMA) system and then deduce the bit error rate (BER) formulas of systems in weak and strong scintillations, respectively. According to simulation experiment results, multi-beam propagation can improve the system performance very well compared with single-beam propagating technique. Moreover, the more beams we use, the better the performance we get. When the received optical power is –30 dBm, the BER of the system employing four beams is 5 and 1 dB lower than that of using single-beam propagating technique in weak and strong scintillations, respectively.

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DOI:10.3788/col201109.110602

所属栏目:Fiber optics and optical communications

收稿日期:2011-03-14

录用日期:2011-05-15

网络出版日期:2011-08-15

作者单位    点击查看

赵雅琴:School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China
许丹丽:School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China
钟鑫:School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China

联系人作者:联系作者(yaqinzhao@hit.edu.cn)

备注:This work was supported by the Science and Technology Innovation Talents Special Funds of Harbin, China (No. 2009RFQXG056), the Natural Science Foundation of Heilongjiang Province of China (No. F200910), and the Fundamental Research Funds for Central the Universities (No. HIT.NSRIF.201151).

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