Shared-type Encoder/Decoder Based on 2-D Optical Codes for Large Capacity Optical CDMA Network 


Vol. 30,  No. 5, pp. 359-369, May  2005


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  Abstract

For large capacity optical CDMA networks, we propose a shared-type encoder/decoders based on an tunable wavelength converter(TWC) and an arrayed waveguide grating (AWG) router. The proposed encoder/decoder treats codewords of wavelength/time 2-D code simultaneously using the dynamic code allocation property of the TWC and the cyclic property of the AWG router, and multiple subscribers can share the encoder/decoder in networks. Feasibility of the structure of the proposed encoder/decoder for dynamic code allocation is tested through simulations using two wavelength/time 2-D codes, which are the generalized multi-wavelength prime code(GMWPC) and the generalized multi-wavelength Reed-Solomon code(GMWRSC). Test results show that the proposed encoder/decoder can increase the channel efficiency not only by increasing the number of simultaneous users without any multiple-access interference but by using a relatively short length CDMA codes.

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  Cite this article

[IEEE Style]

W. Ko, S. Shin, H. Hwang, C. Chang, "Shared-type Encoder/Decoder Based on 2-D Optical Codes for Large Capacity Optical CDMA Network," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 5, pp. 359-369, 2005. DOI: .

[ACM Style]

Wonseok Ko, Seoyong Shin, Humor Hwang, and Chulho Chang. 2005. Shared-type Encoder/Decoder Based on 2-D Optical Codes for Large Capacity Optical CDMA Network. The Journal of Korean Institute of Communications and Information Sciences, 30, 5, (2005), 359-369. DOI: .

[KICS Style]

Wonseok Ko, Seoyong Shin, Humor Hwang, Chulho Chang, "Shared-type Encoder/Decoder Based on 2-D Optical Codes for Large Capacity Optical CDMA Network," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 5, pp. 359-369, 5. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880