Dynamic Bandwidth Allocation Algorithm for Multimedia Services over Ethernet PONs

Choi, Sangdun; Huh, Jae-Doo

doi:10.4218/etrij.02.0202.0002

Cited by 85 publications

(37 citation statements)

References 2 publications

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“…For instance, the authors in [4] propose an algorithm that divides the total upstream bandwidth into fixed-sized bandwidth units (say 10 Mbps per bandwidth unit), such that, high-priority ONUs receive more bandwidth units than best-effort ones. Further refinements are proposed in [5], [6], [7] where the ONUs have several Virtual Output Queues (VOQs) for different traffic classes, such that the granted transmission window is shared by the ONU's traffic classes following some weighted algorithm that assigns more time to high-priority VOQs than to low priority ones. Essentially, in most cases, it is the OLT which guarantees a fair sharing of bandwidth between the ONUs, while each ONU partitions the granted transmission window to the traffic classes following some weighted algorithm [8].…”

Section: Delay Differentiation In Pon and Related Workmentioning

confidence: 99%

Managing delay in the access

Larrabeiti

Hernández

Seoane

et al. 2012

2012 17th European Conference on Networks and Optical Communications

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Section: Delay Differentiation In Pon and Related Workmentioning

confidence: 99%

Managing delay in the access

Larrabeiti

Hernández

Seoane

et al. 2012

2012 17th European Conference on Networks and Optical Communications

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“…A class-based bandwidth allocation scheme [4] collects REPORT messages from all ONUs before bandwidth allocation. The OLT assigns a fixed bandwidth to the EF traffic in all ONUs regardless of their dynamics.…”

Section: Dba Schemes For Qos In Eponsmentioning

confidence: 99%

“…In order to achieve statistical multiplexing in EPON architecture, a multipoint control protocol (MPCP) is developed and standardized by IEEE 802.3ah. To date, various DBA algorithms to provide differentiated classes of service for EPONs have been proposed [1][2][3][4][5][6][7][8]10]. This paper analyzes the performance, packet delay and delay jitter of the expedited forwarding (EF) traffic class, of several DBA schemes for the differentiated classes of service in EPONs.…”

Section: Introductionmentioning

confidence: 99%

An Analysis of the Delay and Jitter Performance of DBA Schemes for Differentiated Services in EPONs

Choi

2009

Journal of the Optical Society of Korea

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An Ethernet passive optical network (EPON) is a low-cost, high-speed solution to the bottleneck problem of a broadband access network. This paper analyzes the delay and the jitter performance of dynamic bandwidth allocation (DBA) schemes for differentiated services in EPONs. Especially, the average packet delay and the delay jitter of the expedited forwarding (EF) traffic class are compared, with consideration as to whether a cyclic or an interleaved polling scheme is superior. This performance evaluation reveals that the cyclic polling based DBA scheme provides constant and predictable average packet delay and improved jitter performance for the EF traffic class without the influence of load variations.

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“…The REPORT message is used by an ONU to report its local conditions to the OLT. Note that the MPCP does not specify any particular DBA algorithm, but simply provides a framework for the implementation of various DBA algorithms [3][4][5][6]. In auto-discovery mode, the protocol relies on three control messages, REGISTER, REGISTER_REQ, and REGIS-TER_ACK, which are used to discover and register a newly connected ONU and collect relevant information about it, such as its round-trip delay and MAC address.…”

Section: Multi-point Control Protocolmentioning

confidence: 99%