Share Email Print
cover

Proceedings Paper

Comparative study of signaling and routing schemes in ASTN
Author(s): Hui Zhang; Yuanyuan Ma; Dongfeng Mao; Jie Zhang; Wanyi Gu
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We have developed a GMPLS-based software platform with Intelligence Optical Network (ION) capabilities to simulate different technologies and protocols of ASTN. For optical transport network (OTN) based ASTN, usually named as automatically switched optical network (ASON), two signalling schemes, Explicit Label Control (ELC) and Backward Wavelength Reservation with N retries (BWR-N), are considered. The ELC is associated with two routing and wavelength assignment (RWA) policies, the shortest path first routing (Dijkstra algorithm) with first-fit (FF) wavelength assignment and the fixed path least congestion (FPLC) routing with FF wavelength assignment. For the BWR-N, the route is determined by Dijkstra's algorithm and the wavelength is selected through signalling process. For SDH/SONET-based ASTN, we also consider two signalling scheme, the ELC and the Forward Timeslot Reservation (FTR). Similar simulations have been performed. These signalling and routing schemes are evaluated by several crucial metrics, such as the blocking probability, the setup time, the average routing length of the connections and the control overhead. Some significant conclusions have been presented by this paper.

Paper Details

Date Published: 11 February 2005
PDF: 11 pages
Proc. SPIE 5625, Optical Transmission, Switching, and Subsystems II, (11 February 2005); doi: 10.1117/12.575083
Show Author Affiliations
Hui Zhang, Beijing Univ. of Posts and Telecommunications (China)
Yuanyuan Ma, Beijing Univ. of Posts and Telecommunications (China)
Dongfeng Mao, Beijing Univ. of Posts and Telecommunications (China)
Jie Zhang, Beijing Univ. of Posts and Telecommunications (China)
Wanyi Gu, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 5625:
Optical Transmission, Switching, and Subsystems II
Cedric F. Lam; Wanyi Gu; Norbert Hanik; Kimio Oguchi, Editor(s)

© SPIE. Terms of Use
Back to Top