Title :
QoS-promoted dynamic bandwidth allocation for Ethernet passive optical networks
Author :
Tang, Wen-Shiang ; Huang, Chin-Ya ; Chang, Chung-Ju ; Ren, Fang-Ching
Author_Institution :
Nat. Chiao Tung Univ., Hsinchu
Abstract :
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 of 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 DBAMpsilas fairness index of average data delay varies greatly.
Keywords :
bandwidth allocation; optical fibre LAN; quality of service; Ethernet passive optical networks; QoS-promoted dynamic bandwidth allocation; conventional dynamic bandwidth allocation with multiple services; data services; quality of service requirement services; video dropping probability requirement; video service; voice service; Bandwidth; Channel allocation; Delay; EPON; Optical fiber networks; Optical network units; Passive optical networks; Telecommunication traffic; Time division multiple access; Traffic control; Ethernet passive optical networks (EPONs); dynamic bandwidth allocation; optical line terminal (OLT); optical network unit (ONU); quality-of-service (QoS);
Conference_Titel :
Communications and Networking in China, 2008. ChinaCom 2008. Third International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-2373-6
Electronic_ISBN :
978-1-4244-2374-3
DOI :
10.1109/CHINACOM.2008.4685014
