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Next generation Ethernet access networks: GPON vs. EPON

Recently both ITU and IEEE have standardized solutions for Passive Optical Networks operating at gigabit per second line rates and optimized for the transport of packet-based traffic to improve the efficiency of previously standardized broadband PONs, which were based on ATM. The efficiency and performance of PON systems, depends mainly on the implemented medium access protocol. The latter is not part of the standards and left to the implementer, however the standards describe a set of control fields that constitute the tool-set for the MAC operation. In this paper we compare the efficiency and performance of the two systems under as close as possible MAC.