A New Method for Blocking Probability Evaluation in OBS/OPS Networks With Deflection Routing

Author

Wong, Eric W M ; Baliga, Jayant ; Zukerman, Moshe ; Zalesky, Andrew ; Raskutti, Garvesh

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong, China

Volume

27

Issue

23

fYear

2009

Firstpage

5335

Lastpage

5347

Abstract

In this paper, we present a new method for the estimation of blocking probabilities in bufferless optical burst or packet switched networks. In such networks, deflection routing is used to reduce blocking probability. However, it requires certain wastage due to trunk reservation that must be used to avoid instability. We provide a wide range of simulation and numerical results to validate our new approximation method and demonstrate various effects on blocking probability and utilization, such as network size, trunk size, the maximal number of allowable deflections, and burst/packet length.

Keywords

optical burst switching; packet switching; probability; telecommunication network routing; OBS/OPS networks; approximation method; blocking probability; deflection routing; network size; optical burst switching; optical packet switching; packet switched networks; trunk size; Blocking probability; Erlang fixed-point approximation; deflection routing; non-hierarchical networks; optical burst switched (OBS); optical packet switching (OPS); overflow priority classification approximation;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2009.2031123

Filename

5226575