On Burst Assembly in Optical Burst Switching Networks – A Performance Evaluation of Just-Enough-Time

نویسندگان

  • K. Dolzer
  • C. Gauger
چکیده

On the way towards an architecture for a new QoS-supporting and scalable Internet, the IPover-photonics approach seems to be very promising. One possible solution in this domain is optical burst switching (OBS), a concept combining advantages of optical circuit and packet switching. After an introduction to OBS as well as the reservation mechanism Just-EnoughTime (JET) we present an approximative analysis of the burst loss probability in an OBS node for an arbitrary number of service classes. Based on analytical and simulation results, we show the impact of traffic characteristics on service differentiation in a single node. Finally, we investigate service differentiation for various parameters in an OBS network scenario.

برای دانلود رایگان 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

Performance analyses of optical burst-switching networks

This paper provides a scalable framework for analysis and performance evaluation of optical burst-switching (OBS) networks. In particular, a new reduced load fixed point approximation model to evaluate blocking probabilities in OBS networks is introduced. The model is versatile enough to cover known OBS reservation policies such as just-enough-time, just-in-time, burst segmentation, and route-d...

متن کامل

Blocking Probabilities of Optical Burst Switching Networks Based on Reduced Load Fixed Point Approximations

This paper provides a framework for analysis and performance evaluation of Optical Burst Switching (OBS) networks. In particular, a new reduced load fixed point approximation model to evaluate blocking probabilities in OBS networks is introduced. The model is versatile enough to cover known OBS reservation policies such as Just-Enough-Time (JET), Just-InTime (JIT), Burst Segmentation and Route-...

متن کامل

Performance enhancement of optical burst switching using burst segmentation

In this paper we provide an analytical framework for studying the performance of Optical Burst Switching (OBS) networks using Burst Segmentation. We first consider a single link model to evaluate the blocking probability of OBS using Burst Segmentation and confirm it by simulation. We use this analysis to demonstrate the benefit of Burst Segmentation over the well-known Just-Enough-Time (JET) p...

متن کامل

Performance evaluation of optical burst switching with assembled burst traffic input

This paper studies loss performance of optical burst switching (OBS) with assembled burst traf£c input by exploring the characteristics of assembled burst traf£c. We analyze the smoothing effect of assembly algorithms, which changes the statistical properties of packet ¤ows, and £nd that assembly algorithms smooth the short range burstiness in packet traf£c and thus enhance the loss performance...

متن کامل

Improving fairness in optical-burst-switching networks

Approaches for dealing with the beat-down unfairness problem have been mainly limited to electronic packet-switching networks. We investigate two methods for alleviating this problem in optical-burst-switching (OBS) networks. When OBS is used with just-in-time or just-enough-time scheduling, the control packet transmitted ahead of the data burst may fail to secure a free channel, causing the da...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2001