PON mobile access network without Mobile IP FA switchover

In this paper we introduce a PON mobile access network as a candidate to offer continuous multimedia IP communications to fast moving terminals in a micro-cellular environment. As an alternative to IP micro-mobility protocols we propose a PON access network with FA distributed over all access points connected to the same fiber. All ONU associated with the same FA are given the same IP address, and mobility inside the area of a singular fiber is transparent to the IP layer. Our architecture thus supports soft handover for IP transmissions on the downlink inside each fiber, at the same time as the HA update frequency is reduced. Simulations showed that at 70 km/h in a 100 m micro-cellular network with PON clusters of 30 cells, HA update occurs every 25 seconds, compared to every five seconds if a unique FA is located at each access point.