Optical restoration at the wavelength-multiplex-section level in WDM mesh networks

被引:6
作者
Karasan, E [1 ]
Goldstein, E [1 ]
机构
[1] AT&T Bell Labs, Res, Newman Springs Lab, Red Bank, NJ 07701 USA
关键词
long-haul networks; optical restoration; wavelength-division multiplexing; wavelength-multiplex section; wavelength path;
D O I
10.1109/68.705637
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In the presence of rapidly growing demand, long-haul multiwavelength lightwave networks face the increasingly critical task of not only transporting large traffic volumes, but also of restoring them in the event of failures. This may be naturally done in two distinct ways: by rerouting individual wavelengths (wavelength-paths), or by rerouting full bundles of multiplexed wavelengths (wavelength-multiplex sections). We here evaluate the prospects for restoration at the wavelength-multiplex-section level in national-scale long-haul wavelength-division-multiplexed mesh networks. The approach is found to offer the potential of substantial economic benefits, given current transponder costs. These benefits will largely vanish, however, if transponder costs decline by an order of magnitude.
引用
收藏
页码:1343 / 1345
页数:3
相关论文
共 7 条
[1]   FAST RESTORATION OF ATM NETWORKS [J].
ANDERSON, J ;
DOSHI, BT ;
DRAVIDA, S ;
HARSHAVARDHANA, P .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1994, 12 (01) :128-138
[2]  
[Anonymous], 1979, Computers and Intractablity: A Guide to the Theoryof NP-Completeness
[3]   NUMBER OF WAVELENGTHS REQUIRED FOR CONSTRUCTING OPTICAL-PATH NETWORK CONSIDERING RESTORATION [J].
HAMAZUMI, Y ;
NAGATSU, N ;
OKAMOTO, S ;
SATO, KI .
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS, 1995, 78 (07) :30-41
[4]   Optical path cross-connect system scale evaluation using path accommodation design for restricted wavelength multiplexing [J].
Nagatsu, N ;
Okamoto, S ;
Sato, K .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1996, 14 (05) :893-902
[5]  
TKACH RW, 1998, P OPT FIB COMM C SAN
[6]  
1995, GR253CORE
[7]  
1996, UNPUB MONET Q REP