With rapid growth of Internet applications, supporting differentiated service and enlarging system capacity have been
new tasks for next generation access system. In recent years, research in OFDMA Passive Optical Networks (PON) has
experienced extraordinary development as for its large capacity and flexibility in scheduling. Although much work has
been done to solve hardware layer obstacles for OFDMA PON, scheduling algorithm on OFDMA PON system is still
under primary discussion. In order to support QoS service on OFDMA PON system, a novel dynamic wavelength
bandwidth allocation (DWBA) algorithm is proposed in this paper. Per-stream QoS service is supported in this algorithm.
Through simulation, we proved our bandwidth allocation algorithm performs better in bandwidth utilization and
differentiate service support.
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