Journal ArticleDOI
Dynamic bandwidth allocation for quality-of-service over Ethernet PONs
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TLDR
This work proposes to use the multipoint control protocol defined by the IEEE 802.3ah task force to arbitrate the transmission of different users, and presents different dynamic bandwidth allocation (DBA) algorithms to allocate bandwidths effectively and fairly between end users.Abstract:
Ethernet-based passive optical network (EPON) technology is being considered as a promising solution for next-generation broadband access networks due to the convergence of low-cost Ethernet equipment and low-cost fiber infrastructures. A major feature for this new architecture is the use of a shared transmission media between all users; hence, medium access control arbitration mechanisms are essential for the successful implementation of EPON: i.e., to ensure a contention-free transmission and provide end users with equal access to the shared media. We propose to use the multipoint control protocol defined by the IEEE 802.3ah task force to arbitrate the transmission of different users, and we present different dynamic bandwidth allocation (DBA) algorithms to allocate bandwidths effectively and fairly between end users. These DBA algorithms are also augmented to support differentiated services, a crucial requirement for a converged broadband access network with heterogeneous traffic. We show that queueing delays under strict bandwidth allocation algorithms result in an unexpected behavior for certain traffic classes, and we suggest the use of DBA with appropriate local queue management to alleviate this inappropriate behavior. We conduct detailed simulation experiments to study the performance and validate the effectiveness of the proposed protocols.read more
Citations
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Proceedings ArticleDOI
Adaptive Fairness through intra-ONU Scheduling for Ethernet Passive Optical Networks
TL;DR: This paper presents a new intra-ONU scheduling scheme based on the Deficient Weighted Round Robin (DWRR) scheduling to achieve adaptive fairness among different classes of services and validate the reasoning by measuring both the end-to-end delay of different traffic along with the jitter performance of high priority traffic using extensive simulation experiments.
Journal ArticleDOI
Integrated Dynamic Bandwidth Allocation in Converged Passive Optical Networks and IEEE 802.16 Networks
TL;DR: A slotted DBA (S-DBA) scheme is proposed that takes into account the specific features of the converged network, aiming to reduce signaling overhead caused by cascaded bandwidth requests and grants and increase channel utilization.
Journal ArticleDOI
Toward Quality of Service Protection in Ethernet Passive Optical Networks: Challenges and Solutions
TL;DR: An admission control framework is presented that is capable of supporting and protecting the QoS of real-time traffic while guaranteeing a minimum bandwidth for best effort traffic, and present an appropriate dynamic bandwidth allocation algorithm.
Journal ArticleDOI
Implementation of Intra-ONU Scheduling for Quality of Service Support in Ethernet Passive Optical Networks
TL;DR: This work analyzes the performance of dynamic bandwidth allocation algorithms and intra-ONU scheduling algorithms and further investigates how a combination these algorithms can be implemented in EPON in order to efficiently support the transmission of multimedia traffic and improve theperformance of the low priority traffic at the same time.
Journal ArticleDOI
Low-Latency Polling Schemes for Long-Reach Passive Optical Networks
TL;DR: Three dynamic bandwidth allocation frameworks in terms of frame (packet) delay are evaluated; namely, conventional (interleaved) polling for traditional PON and two recently introduced scheduling paradigms for next generation LR-PON, i.e., multi-thread polling and real-time polling are considered.
References
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An Architecture for Differentiated Service
TL;DR: An architecture for implementing scalable service differentiation in the Internet achieves scalability by aggregating traffic classification state which is conveyed by means of IP-layer packet marking using the DS field [DSFIELD].
Journal ArticleDOI
Proof of a fundamental result in self-similar traffic modeling
TL;DR: The superposition of many ON/OFF sources with strictly alternating ON- and OFF-periods can produce aggregate network traffic that exhibits the Joseph Effect, and this mathematical result can be combined with modern high-performance computing capabilities to yield a simple and efficient linear-time algorithm for generating self-similar traffic traces.
Journal ArticleDOI
Interleaved Polling with Adaptive Cycle Time (IPACT): A Dynamic Bandwidth Distribution Scheme in an Optical Access Network
TL;DR: This study believes that a PON based on polling, with data encapsulated in Ethernet frames, possesses the best qualities, such as dynamic bandwidth distribution, use of a single downstream and a single upstream wavelength, ability to provision a fractional wavelength capacity to each user, and ease of adding a new user.
Journal ArticleDOI
Ethernet PON (ePON): Design and Analysis of an Optical Access Network
TL;DR: This study proposes the design and analysis of a PON architecture which has an excellent performance-to-cost ratio and discusses the possibility of improving the bandwidth utilization by means of timeslot size adjustment, and by packet scheduling.
Book
Local Area Networks
TL;DR: This book is an introductory course in analysis of local area networks or computer networks, and a major feature of the text is that it covers both performance analysis and implementation considerations.