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.

Date Published: 15 December 2011
PDF: 6 pages
Proc. SPIE 8310, Network Architectures, Management, and Applications IX, 83100S (15 December 2011); doi: 10.1117/12.904291

Published in SPIE Proceedings Vol. 8310:
Network Architectures, Management, and Applications IX
Lena Wosinska; Ken-ichi Sato; Jing Wu; Jie Zhang, Editor(s)