FTTH 망에 널리 적용되고 있는 PON 기술은 OPEX 비용을 최소화 하면서 가입자에게 많은 대역을 제공할 수 있는 매력적인 기술이다. 이러한 대표적인 PON 기술에는 가입자간 시분할 방법에 의하여 데이터를 전송하는 TDMA-PON이 있으며, 여기에는 IEEE802.3의 EPON과 ITU-T/FSAN의 GPON이 포함된다. 향후 IPTV 등을 포함한 신규 서비스 등장과 광대역을 요구하는 미래 가입자 서비스를 충족시키기 위해서 PON 기술은 지속적으로 발전할 것으로 예상된다. 본 고에서는 IEEE802.3과 ITU-T/FSAN에서 추진중인 차세대 광가입자망 표준화 활동 동향을 소개한다.
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