Supporting QoS with look-ahead window contention resolution in optical burst switched networks

نویسندگان

  • Farid Farahmand
  • Jason P. Jue
چکیده

Optical burst switching (OBS) has been proposed as a competitive hybrid switching technology to support the nextgeneration optical Internet. This paper addresses the problem of contention in OBS networks and introduces a new contention resolution algorithm called Look-ahead window Contention Resolution (LCR) that can also support service differentiation. Simulation results show that the performance of LCR is competitive to existing contention resolution mechanisms in terms of reducing burst loss. KeywordsContention Resolution; Look-ahead Window; Optical Burst Switching; Quality of Service (QoS)

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

Look-ahead Window Contention Resolution in Optical Burst Switched Networks

In this article we introduce a new contention resolution algorithm called Look-ahead Window Contention Resolution (LCR). This unique contention resolution approach can be used in conjunction with a scheduling technique to reduce the packet loss in an optical burst switched network. We analyze the performance of LCR by means of simulations and compare it with other major existing contention reso...

متن کامل

Prioritized Routing and Burst Segmentation for QoS in Optical Burst-Switched Networks

Deflection routing and burst segmentation are two techniques for resolving contention in optical burst-switched networks. By selectively applying these techniques to bursts with different QoS requirements, we can offer a range of differentiated services at the optical layer. c 2001 Optical Society of America OCIS codes: (060.4250) Networks

متن کامل

A flexible contention resolution scheme for QoS provisioning in optical burst switching networks

Contention resolution is a major issue in bufferless optical burst switching (OBS) networks. The existing contention resolution schemes consider priority and arrival time to resolve contention. For most multimedia applications priority and delay are key parameters for QoS provisioning. In this paper, we propose a new signaling protocol for reducing contention in OBS networks and consider three ...

متن کامل

Prioritized burst segmentation and composite burst-assembly techniques for QoS support in optical burst-switched networks

In this paper, we address the issue of providing differentiated services to IP packets over an optical burst-switched network. QoS is supported by introducing prioritized contention resolution policies in the network core and a new burst assembly technique at the network edge. In the core, contention is resolved through prioritized burst segmentation and prioritized deflection. The burst segmen...

متن کامل

Optical burst switching network: A multi-layered approach

This paper defines a new multi-layered architecture for supporting optical burst switching (OBS) in an optical core network. The architecture takes into account both the control plane as well as the data plane. The paper describes the functionality and the primary protocols that are required at each layer and it explains how the layers interact with each other in the proposed architecture. This...

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 2003