1. [1] http://www.soumu.go.jp/johotsusintokei/whitepaper/ja/h22/pdf/m4010000.pdf
2. [2] ITU-T Recommendation G.983.1, “Broadband optical access systems based on Passive Optical Networks (PON),” 1998.
3. [3] ITU-T Recommendation G.984.3, “Gigabit-capable Passive Optical Networks (G-PON): Transmission convergence layer specification,” 2004.
4. [4] IEEE Std 802.3™-2008
5. [5] IEEE Std 802.3av