In this paper, we propose a QOS-promoted dynamic bandwidth allocation (Q-DBA) method to support quality-of-service (QoS) requirement services for Ethernet passive optical networks (EPON). The Q-DBA method classifies the three types of services: voice, video, and data into six priorities. It can not only satisfy QoS requirements of real-time service and but also improve the QoS or non-real-time packets, Simulation results show that the Q-DBA can fulfill the video dropping probability requirement while the conventional dynamic bandwidth allocation with multiple services (DBAM) fails. Also, the Q-DBA can achieve the fairness index of average data delay close to 1 but DBAM's fairness index of average data delay varies greatly.
|Name||2008 THIRD INTERNATIONAL CONFERENCE ON COMMUNICATIONS AND NETWORKING IN CHINA, VOLS 1-3|
|Conference||3rd International Conference on Communications and Networking in China, ChinaCom 2008|
|Period||25/08/08 → 27/08/08|
- quality-of-service (QoS); dynamic bandwidth allocation; Ethernet passive optical networks (EPONs); optical line terminal (OLT); optical network unit (ONU)