Title :
NFS: A new DBA to alleviate channel idle time in heterogeneous WDM-EPONs
Author :
Razmkhah, Ali ; Rahbar, Akbar Ghaffarpour
Author_Institution :
Comput. Networks Res. Lab., Sahand Univ. of Technol., Tabriz, Iran
Abstract :
Several dynamic bandwidth allocation (DBA) protocols have been introduced to utilize upstream channel in Ethernet Passive Optical Networks (EPONs). In this paper, a novel MAC protocol, called Nearest First Scheme (NFS) is introduced. NFS can minimize end to end delay and packet drop ratio at ONUs. Additionally, NFS can relive the common drawback of offline scheduling, i.e., channel idle time. NFS schedules ONU by taking RTT´s dissimilarities into account and improves network performances.
Keywords :
access protocols; bandwidth allocation; optical fibre LAN; passive optical networks; wavelength division multiplexing; wireless channels; DBA protocol; Ethernet passive optical networks; MAC protocol; NFS; ONU; channel idle time; dynamic bandwidth allocation protocol; heterogeneous WDM-EPON; nearest first scheme protocol; optical network units; packet drop ratio; upstream channel; Delay; EPON; Logic gates; Noise measurement; Optical network units; Passive optical networks; Resource management; DBA; EPON; Hetergeniuos PON;
Conference_Titel :
Telecommunications (IST), 2010 5th International Symposium on
Conference_Location :
Tehran
Print_ISBN :
978-1-4244-8183-5
DOI :
10.1109/ISTEL.2010.5734013
