Title :
MAC protocol requirements for OFDMA-PONs
Author :
Lim, Wansu ; Milosavljevic, Milos ; Gliwan, Ali ; Kourtessis, Pandelis ; John, Michael
Author_Institution :
Opt. Networks Group, Univ. of Hertfordshire, Hatfield, UK
Abstract :
This paper provides specifications of the parameters defining the design of medium access control (MAC) protocols for orthogonal frequency division multiple access (OFDMA) passive optical networks (PONs). A dynamic bandwidth allocation (DBA) algorithm exhibiting service level agreement (SLA) has displayed packet delays of less than 1.5 ms for the middle and high SLA optical network units (ONUs) at 156 Mbps, representing the maximum ONU offered load. A spectral efficiency of 93.75% the total network capacity of 40 Gbps has been achieved, for 256 ONUs and long-reach link lengths of 100 km. The new protocol functionalities have been attained by the extension of the XG-PON frame structure to demonstrate OFDMA/TDMA granularity.
Keywords :
OFDM modulation; access protocols; passive optical networks; MAC protocol requirements; MAC protocols; OFDMA passive optical networks; OFDMA-PON; OFDMA/TDMA granularity; SLA optical network units; XG-PON frame structure; bit rate 156 Mbit/s; distance 100 km; dynamic bandwidth allocation; long-reach link lengths; medium access control protocols; orthogonal frequency division multiple access; packet delays; protocol functionalities; service level agreement; spectral efficiency; Bandwidth; Channel allocation; Media Access Protocol; Optical network units; Passive optical networks; Time division multiple access; Next generation access networks; orthogonal frequency division multiplexing (OFDM); passive optical networks (PONs) and medium access control (MAC) protocol;
Conference_Titel :
Transparent Optical Networks (ICTON), 2012 14th International Conference on
Conference_Location :
Coventry
Print_ISBN :
978-1-4673-2228-7
Electronic_ISBN :
2161-2056
DOI :
10.1109/ICTON.2012.6253744
