10 Gb/s two-dimensional free-space optical code division multiple access wiretap channel with spatial diversity

Jianhua Ji; Jianjia Zhang; Bing Wu; Ke Wang; Ming Xu

doi:doi:10.3788/COL201917.080604

Chinese Optics Letters, 2019, 17 (8): 080604, Published Online: Jul. 16, 2019

10 Gb/s two-dimensional free-space optical code division multiple access wiretap channel with spatial diversity

Jianhua Ji ^*Jianjia Zhang Bing Wu Ke Wang Ming Xu

Author Affiliations

Shenzhen Key Laboratory of Communication and Information Processing, College of Information Engineering, Shenzhen University, Shenzhen 518060, China

Figures & Tables

Fig. 1. 10 Gb/s 2D FSO-CDMA wiretap channel.

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Fig. 2. Optical encoder and decoder based on WSS and ODLs.

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Fig. 3. Received signal waveforms: (a) middle turbulence and (b) weak turbulence.

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Fig. 4. Eye diagrams of middle turbulence: (a) diversity and (b) no diversity.

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Fig. 5. BERs in weak and middle turbulence conditions.

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Fig. 6. Eve’s eye diagrams with an extract ratio of 1%: (a) encoded and (b) uncoded.

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Fig. 7. Eve’s BER with an extract ratio of 1%.

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Jianhua Ji, Jianjia Zhang, Bing Wu, Ke Wang, Ming Xu. 10 Gb/s two-dimensional free-space optical code division multiple access wiretap channel with spatial diversity[J]. Chinese Optics Letters, 2019, 17(8): 080604.

10 Gb/s two-dimensional free-space optical code division multiple access wiretap channel with spatial diversity

Fig. 1. 10 Gb/s 2D FSO-CDMA wiretap channel.

Fig. 2. Optical encoder and decoder based on WSS and ODLs.

Fig. 3. Received signal waveforms: (a) middle turbulence and (b) weak turbulence.

Fig. 4. Eye diagrams of middle turbulence: (a) diversity and (b) no diversity.

Fig. 5. BERs in weak and middle turbulence conditions.

Fig. 6. Eve’s eye diagrams with an extract ratio of 1%: (a) encoded and (b) uncoded.

Fig. 7. Eve’s BER with an extract ratio of 1%.

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10 Gb/s two-dimensional free-space optical code division multiple access wiretap channel with spatial diversity

Fig. 1. 10 Gb/s 2D FSO-CDMA wiretap channel.

Fig. 2. Optical encoder and decoder based on WSS and ODLs.

Fig. 3. Received signal waveforms: (a) middle turbulence and (b) weak turbulence.

Fig. 4. Eye diagrams of middle turbulence: (a) diversity and (b) no diversity.

Fig. 5. BERs in weak and middle turbulence conditions.

Fig. 6. Eve’s eye diagrams with an extract ratio of 1%: (a) encoded and (b) uncoded.

Fig. 7. Eve’s BER with an extract ratio of 1%.

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