An Analytical Study of Optical Burst Switching Aggregation Strategies

نویسندگان

  • M. de Vega Rodrigo
  • Jürgen Götz
چکیده

Optical Burst Switching (OBS) is considered as a promising switching technique for the next generation of optical networks. A solid understanding of the characteristics of OBS traffic is the prerequisite to efficiently address a series of problems such as network dimensioning, performance optimization, routing and load balancing. In this paper we address this issue presenting the first exact and complete analytical model of OBS traffic with Poissonian IP input traffic. We demonstrate that with the standard aggregation strategies this traffic is not Poisson. In addition we present a new aggregation strategy that definitely generates poisson traffic, which enables the use of all published results which had assumed poisson traffic. Our analytical model includes the exact distributions of the burst interarrival time, burst size, burst formation time and number of IP packets per burst, together with tractable expressions for their mean and variance.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Analysis of Wavelength-Routed Optical Burst-Switched Network Performance

This paper studies a novel scalable network architecture combining optical burst switching (OBS) with dynamic wavelength allocation to guarantee quality of service (QoS). All processing and buffering functions are concentrated at the network edge and bursts are assigned to fast tuneable lasers and routed over a bufferless optical transport core using dynamic wavelength assignment. Different bur...

متن کامل

Amplification effects of the send rate of TCP connection through an optical burst switching network

This paper investigates support for TCP RENO flows in an Optical Burst Switching (OBS) network. In particular we evaluate the TCP send-rate, i.e. the amount of data sent per time unit taking into account the burst assembly mechanism at the edge nodes of the OBS network and burst loss events inside the network. The analysis demonstrates an interesting phenomenon, that we call correlation benefit...

متن کامل

On the departure process of burst aggregation algorithms in optical burst switching

We characterize analytically the departure process from the following three burst aggregation algorithms: the time based aggregation algorithm, the burst-length based aggregation algorithm and the time and burst-length based aggregation algorithm. The arrival process of packets is assumed to be Poisson or bursty modeled by an Interrupted Poisson Process (IPP). The analytic results are approxima...

متن کامل

4 Wavelength Routing / Optical Burst Switching / Optical Access Network 4 - 1 Experimental Study of a Burst - Switched WDM Network Testbed

The advances of wavelength division multiplexing (WDM) technology and rapid growth of Internet traffic have generated a serious mismatch between huge transmission capacity of optical fibers and routing/forwarding capability of electronic routers, which has triggered many research activities on optical switching technologies. Among various switching technologies, optical burst switching (OBS)[1]...

متن کامل

Analysis of Delay Variation with Burst Size In Optical Burst Switching In the Presence of Aggregate Self-Similar Traffic

Considering that optical networking is still in early stages of its evolution, Optical Burst Switching (OBS) is widely recognized as the most feasible data forwarding mechanism for the next generation Optical Internet that could be realized using currently available optical technology. OBS forwards data in a form of bursts of packets assembled and disassembled in the electrical domain in order ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004