QoS aware MAC protocol for OFDMA-PON

Author

Lim, Wansu ; Kourtessis, Pandelis ; Milosavljevic, Milos ; Senior, John M.

Author_Institution

Opt. Networks Group, Univ. of Hertfordshire Coll. Lane Campus, Hatfield, UK

fYear

2011

fDate

26-30 June 2011

Firstpage

1

Lastpage

4

Abstract

A quality of service (QoS) aware medium access control (MAC) protocol is presented for next generation OFDMA-PONs. The end-to-end delay and network throughput are investigated in the presence of class-of-service and service-level differentiation. In addition, this paper proposes a new dynamic subcarrier allocation (DSA) algorithm. The monitoring window time technique is used where OLT measures the state of the ONU´s queue instead of exchanging traditional report messages. As a result, the end-to-end packet delay of high and middle SLAs is less than 0.7 ms even if the ONU offered load is 1.0. The packet delay of the high priority traffic class regardless of SLA levels is however less than 0.6 ms. The total network throughput is 97% of total capacity.

Keywords

OFDM modulation; access protocols; next generation networks; passive optical networks; quality of service; QoS aware MAC protocol; dynamic subcarrier allocation algorithm; end-to-end delay; medium access control protocol; monitoring window time technique; network throughput; next generation OFDMA-PON; quality of service; Bandwidth; Delay; Heuristic algorithms; Media Access Protocol; Optical network units; Quality of service; Throughput; dynamic subcarrier allocation (DSA); medium access control (MAC) protocol; orthogonal frequency division multiple access (OFDMA); quality of service (QoS);

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2011 13th International Conference on

Conference_Location

Stockholm

ISSN

2161-2056

Print_ISBN

978-1-4577-0881-7

Electronic_ISBN

2161-2056

Type

conf

DOI

10.1109/ICTON.2011.5970941

Filename

5970941