Does burst assembly really reduce the self-similarity?

Hu, Guoqiang; Dolzer, Klaus; Gauger, Christoph M.

doi:10.1109/ofc.2003.1247540

Cited by 44 publications

(24 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Still, it cannot reduce the self-similarity of network traffic, which is commonly measured on higher time-scales (typically seconds and above). Only the self-similarity of the stochastic process describing the burst control packets can be reduced by time-based assembly [HDG03]. But this does not influence the data channels in OBS, which are more relevant for QoS [HMQ + 05].…”

Section: Characteristics Of Assembled Burst Trafficmentioning

confidence: 99%

Novel Network Architecture for Optical Burst Transport

Gauger¹

2009

PIK - Praxis Der Informationsverarbeitung Und Kommunikation

View full text Add to dashboard Cite

SummaryTransport networks form the backbone of communication networks by cost-efficiently offering huge bandwidth and by guaranteeing a high service quality and availability. These requirements can best be met by using optical communication technologies. Currently, wavelength-switching is the most prominent network technology employing optical fiber communication and wavelength division multiplexing. It transports data in circuit-switched wavelength channels, the so-called lightpaths. While for years progress in optical networks has been defined by ever increasing transmission bit-rates, higher flexibility and manageability as well as multi-service and multi-layer integration are equally important criteria today. Accounting for these trends, optical burst switching (OBS) has been proposed as a highly dynamic optical network architecture. It offers fine-granular transport of different packet-switched services and applies statistical multiplexing directly in the optical layer.This thesis presents the design, modeling, and evaluation of the optical burst transport network architecture (OBTN). The architecture is motivated by the need for flexible, scalable, and cost-efficient transport in next generation networks. In addition, it is stimulated by the research activities towards highly dynamic optical network infrastructures.OBTN defines a network architecture to transport and switch optical burst data in a core network. The design objectives for the OBTN architecture are (i) an overall high quality of service, (ii) a network design allowing for cost-efficiency and scalability, and (iii) a network evolution perspective based on the current wavelength-switched networks. These objectives are achieved by combining selected concepts, architectures, and strategies of optical burst and optical packet switching as well as of multi-layer traffic engineering.In order to provide the background information for the design of OBTN, Chapter 2 introduces the general characteristics, requirements, and trends for next generation transport networks. Also, it discusses the concept of layering in next generation networks and its application in layer networks for the virtualization of transport resources. Consequently, virtual topology design and dimensioning are analyzed to quantify the trade-offs regarding connectivity and resource requirements. Chapter 2 also reviews the fundamental technologies as well as currently emerging data and control plane architectures for optical transport networks. This presentation is then extended towards a long-term perspective. It describes architectural constraints and classification criteria for highly dynamic optical network architectures. These criteria are used to characterize the fast optical circuit switching, optical burst switching, and optical packet switching architectures. Then, hybrid optical network architectures are discussed as a framework to combine wavelength-switched and optical burst/packet-switched networks.i ii Summary Chapter 3 discusses the state of research and technology for o...

show abstract

Section: Characteristics Of Assembled Burst Trafficmentioning

confidence: 99%

Novel Network Architecture for Optical Burst Transport

Gauger¹

2009

PIK - Praxis Der Informationsverarbeitung Und Kommunikation

View full text Add to dashboard Cite

show abstract

“…The detailed model is described in [5]. Regarding the traffic volume measurement, the approach presented in [42] is adopted focusing on packet and burst-wise measurements because the packet-wise and burst-wise analysis is important on the performance of the electronic control units in core routers. The quantitative values for the Hurst parameter estimation are reported for the proposed adaptive burstification algorithm.…”

Section: Performance Evaluation Of Adaptive Burst Assembly Algorithmsmentioning

confidence: 99%

“…The statistics for the size and interarrival time of bursts from the assembly are investigated in [22,59]. The impact of burstification on the selfsimilarity level of the data traffic is studied in [42,48,103,107]. A complete analysis is investigated in Section 7.3.3 where the impact of timer-and size-based burstification algorithms on the self-similarity level of the output traffic is reported.…”

Section: Burstification Mechanisms 731 Introduction and State-of-thmentioning

confidence: 99%

Performance Issues in Optical Burst/Packet Switching

Careglio

Aracil

Azodolmolky

et al. 2009

Towards Digital Optical Networks

View full text Add to dashboard Cite

Esta es la versión de autor de la comunicación de congreso publicada en: This is an author produced version of a paper published in: Abstract. This chapter summarises the activities on optical packet switching (OPS) and optical burst switching (OBS) carried out by the COST 291 partners in the last 4 years. It consists of an introduction, five sections with contributions on five different specific topics, and a final section dedicated to the conclusions. Each section contains an introductive state-of-the-art description of the specific topic and at least one contribution on that topic. The conclusions give some points on the current situation of the OPS/OBS paradigms.

show abstract

“…Packets arriving at an edge node are aggregated into a burst according to some burst aggregation method [34][35][36][37]. The aggregation process transforms the original packet traffic into a burst traffic that can be described by a source which switches its level of activity between two states: ON (burst transmission time, with mean duration equal to t ON ) and OFF (time between the end of a burst transmission and the start of the next one, with mean duration equal to t OFF ).…”

Section: Network and Traffic Modelmentioning

confidence: 99%

Joint routing and dimensioning of optical burst switching networks

et al. 2008

View full text Add to dashboard Cite

Existing methods for handling routing and dimensioning in dynamic WDM networks solve the two problems separately. The main drawback of this approach is that a global minimum cost solution cannot be guaranteed. Given that wavelengths are costly resources, determining the minimum network cost is of fundamental importance. We propose an approach which jointly solves the routing and dimensioning problems in optical burst switching (OBS) networks, guaranteeing a target blocking per connection. The method finds the set of routes and the number of wavelengths per network link that minimise the total network cost. To accomplish this, an integer linear programming problem is solved. The proposed method was applied to ring networks, where the optimal solution achieves a reduction in the network cost of 10-40% (for traffic loads < 0.4, compared to solving both problems separately). In the case of mesh topologies, to reduce the computational complexity of the method, we applied a variation of it which achieves a local minimum. Even so, a reduction of 5-20% (for traffic loads < 0.4) in the network cost was obtained. This ability to lower network cost could make the proposed method the best choice to date for dynamic network operators.

show abstract

Does burst assembly really reduce the self-similarity?

Cited by 44 publications

References 4 publications

Novel Network Architecture for Optical Burst Transport

Novel Network Architecture for Optical Burst Transport

Performance Issues in Optical Burst/Packet Switching

Joint routing and dimensioning of optical burst switching networks

Contact Info

Product

Resources

About