Improvement of Upstream Bandwidth Utilization Using Two-Upstream-Wavelengths TDM-PON System 


Vol. 33,  No. 8, pp. 609-614, Aug.  2008


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  Abstract

Upstream data frame of TDM-PON includes various types of overheads, and there exist guard bands between consecutive frames from different ONUs. Although they are indispensible in synchronization and performance, they cause bandwidth waste at the same time. To solve this problem, a new TDM-PON that uses two types of wavelengths in upstream transmission is suggested. By even distribution of two wavelengths among ONUs and overhead overlap between frames that use different wavelengths, almost 100% bandwidth efficiency could be achieved. A serializer that multiplexes signals from two wavelengths is implemented for this purpose.

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  Cite this article

[IEEE Style]

J. Chung, J. Park, B. Choi, J. Yoo, B. Kim, Y. Park, "Improvement of Upstream Bandwidth Utilization Using Two-Upstream-Wavelengths TDM-PON System," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 8, pp. 609-614, 2008. DOI: .

[ACM Style]

Junhoi Chung, Jaeuk Park, Byungchul Choi, Jeahoon Yoo, Byoung-Whi Kim, and Youngil Park. 2008. Improvement of Upstream Bandwidth Utilization Using Two-Upstream-Wavelengths TDM-PON System. The Journal of Korean Institute of Communications and Information Sciences, 33, 8, (2008), 609-614. DOI: .

[KICS Style]

Junhoi Chung, Jaeuk Park, Byungchul Choi, Jeahoon Yoo, Byoung-Whi Kim, Youngil Park, "Improvement of Upstream Bandwidth Utilization Using Two-Upstream-Wavelengths TDM-PON System," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 8, pp. 609-614, 8. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880