Study on Enhanced ONU Activation Methods for the G-PON Based on G.984.3 


Vol. 32,  No. 8, pp. 473-481, Aug.  2007


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  Abstract

We are interested in the PON which is easy to install and inexpensive to maintain, as it is a solution of the FTTH that is a core technology of the BcN access network. When a new ONU is connected, TDMA PON has a procedure called ranging that OLT measures the distance and allocates the equalized delay to it in order to provide the same logical distance to all ONUs. For the procedure, the OLT has to open a time window several times and already activated ONUs cannot transmit a data to the upstream during the periods. Accordingly, it is important to reduce the window size for saving the bandwidth and providing a user the service smoothly. In this paper, we investigate the ONU activation method of G-PON based on ITU-T G984.3 and suggest an advanced method (algorithm I) that minimizes the window size without information of ONU distance. The size can be reduced by calculating the pre-assigned delay obtained during Serial number state. Also, we compare it with another (algorithm II) with information of distance. As a result, the window size reduces to 50 ~ 90 % for the algorithm I and 99 % for algorithm II during the ONU activation process.

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  Cite this article

[IEEE Style]

S. Kim, C. Kim, H. Chung, "Study on Enhanced ONU Activation Methods for the G-PON Based on G.984.3," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 8, pp. 473-481, 2007. DOI: .

[ACM Style]

Sun-Mi Kim, Chung-il Kim, and Hae Chung. 2007. Study on Enhanced ONU Activation Methods for the G-PON Based on G.984.3. The Journal of Korean Institute of Communications and Information Sciences, 32, 8, (2007), 473-481. DOI: .

[KICS Style]

Sun-Mi Kim, Chung-il Kim, Hae Chung, "Study on Enhanced ONU Activation Methods for the G-PON Based on G.984.3," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 8, pp. 473-481, 8. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880