Abstract
We present a lightpath allocation strategy for fair routing in wavelength division multiplexing (WDM) optical networks without wavelength conversion. The strategy is able to yield more even pairwise blocking probabilities without much sacrificing average one. This is achieved through using alternate routing to gain network utilization and using an analytical model incorporating path-selection criteria to systematically allocate for each source-destination (SD) pair a set of alternate routes. In particular, the set is built with the smallest granular component lightpath in contrast to the conventional physical path consisting of a bundle of lightpaths. Additionally, the allocation exploits packing density gains by first exhausting lightpaths using a given wavelength to some extent before using another. Simulation results show that the analytical model is sufficiently accurate for identifying a target SD pair to be augmented with one more alternate lightpath, and that the proposed strategy compared with others is able to achieve significantly better uniformity of pairwise blocking probabilities even with different network parameters and topologies.
| Original language | English |
|---|---|
| Pages (from-to) | 585-596 |
| Number of pages | 12 |
| Journal | Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an |
| Volume | 26 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2003 Jan 1 |
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Keywords
- Alternate routing
- Grade of service
- Lightpath allocation
- Wavelength division multiplexing
ASJC Scopus subject areas
- Engineering(all)
Cite this
A lightpath allocation strategy for fair routing in WDM networks. / Tsai, Jung Tsung; Lien, Cheng Huang.
In: Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an, Vol. 26, No. 5, 01.01.2003, p. 585-596.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A lightpath allocation strategy for fair routing in WDM networks
AU - Tsai, Jung Tsung
AU - Lien, Cheng Huang
PY - 2003/1/1
Y1 - 2003/1/1
N2 - We present a lightpath allocation strategy for fair routing in wavelength division multiplexing (WDM) optical networks without wavelength conversion. The strategy is able to yield more even pairwise blocking probabilities without much sacrificing average one. This is achieved through using alternate routing to gain network utilization and using an analytical model incorporating path-selection criteria to systematically allocate for each source-destination (SD) pair a set of alternate routes. In particular, the set is built with the smallest granular component lightpath in contrast to the conventional physical path consisting of a bundle of lightpaths. Additionally, the allocation exploits packing density gains by first exhausting lightpaths using a given wavelength to some extent before using another. Simulation results show that the analytical model is sufficiently accurate for identifying a target SD pair to be augmented with one more alternate lightpath, and that the proposed strategy compared with others is able to achieve significantly better uniformity of pairwise blocking probabilities even with different network parameters and topologies.
AB - We present a lightpath allocation strategy for fair routing in wavelength division multiplexing (WDM) optical networks without wavelength conversion. The strategy is able to yield more even pairwise blocking probabilities without much sacrificing average one. This is achieved through using alternate routing to gain network utilization and using an analytical model incorporating path-selection criteria to systematically allocate for each source-destination (SD) pair a set of alternate routes. In particular, the set is built with the smallest granular component lightpath in contrast to the conventional physical path consisting of a bundle of lightpaths. Additionally, the allocation exploits packing density gains by first exhausting lightpaths using a given wavelength to some extent before using another. Simulation results show that the analytical model is sufficiently accurate for identifying a target SD pair to be augmented with one more alternate lightpath, and that the proposed strategy compared with others is able to achieve significantly better uniformity of pairwise blocking probabilities even with different network parameters and topologies.
KW - Alternate routing
KW - Grade of service
KW - Lightpath allocation
KW - Wavelength division multiplexing
UR - http://www.scopus.com/inward/record.url?scp=0141629346&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0141629346&partnerID=8YFLogxK
U2 - 10.1080/02533839.2003.9670813
DO - 10.1080/02533839.2003.9670813
M3 - Article
AN - SCOPUS:0141629346
VL - 26
SP - 585
EP - 596
JO - Chung-kuo Kung Ch'eng Hsueh K'an/Journal of the Chinese Institute of Engineers
JF - Chung-kuo Kung Ch'eng Hsueh K'an/Journal of the Chinese Institute of Engineers
SN - 0253-3839
IS - 5
ER -