Title :
Adaptive Grant Extension in OC-Enhanced PONs
Author :
Berisa, Tomaz ; Fouli, Kerim ; Maier, Martin ; Bazant, Alen
Author_Institution :
Fac. of Electr. Eng. & Comput., Univ. of Zagreb, Zagreb, Croatia
fDate :
4/1/2011 12:00:00 AM
Abstract :
We present a distributed mechanism termed Adaptive Grant Extension (AGE) for grant-size adjustment in Optical Coding (OC)-enhanced Passive Optical Networks (OC-PONs). AGE exploits the real-time queue updates of OC-PONs to allow the Optical Network Unit (ONU) to extend its transmission beyond the grant provided by the Optical Line Terminal (OLT), thus reducing average frame delay. We discuss the parameters and requirements of AGE in OC-enhanced Ethernet PONs (EPONs). Our simulations show delay gains reaching 9% over OC-PONs.
Keywords :
local area networks; passive optical networks; EPON; Ethernet PON; OC-enhanced PON; adaptive grant extension; distributed mechanism; optical coding; optical line terminal; optical network unit; passive optical networks; Delay; Logic gates; Optical network units; Passive optical networks; Propagation delay; Real time systems; Adaptive grant extension (AGE); dynamic bandwidth allocation (DBA); optical coding (OC); passive optical network (PON); real-time polling;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.021111.101416
