DocumentCode :
1767770
Title :
Cloud service routing in WDM networks with awareness on delay and link failure probability
Author :
Yanli Zhang ; Yun Shi ; Changde Li ; Jie Xiao ; Bin Wu ; Hong Wen ; Xiaohong Jiang
Author_Institution :
Nat. Key Lab. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fYear :
2014
fDate :
9-10 Nov. 2014
Firstpage :
1
Lastpage :
4
Abstract :
Cloud service based on data center (DC) has become an attractive choice for abundant applications. Generally, DCs are distributed at different nodes across a given optical network, and users access DCs through predefined routes. From the perspective of service providers, it is important to offer reliable cloud service while taking service delay and service cost into consideration. In this paper, we study the service routing problem in a given optical network to provide cloud services with high reliability, where failure probability and transmission delay of each link are considered as two coupled parameters. The objective is to minimize the total routing cost and design the access routes for the demands originated from each node. To combine together the corresponding delay and the failure probability of each link, we introduce two cost scaling factors which can be flexibly adjusted to control their relative importance (i.e., the weights). Based on mathematical approximation, a novel method is proposed to compute the failure probabilities of individual service paths. This translates our objective function into a linear expression. Then, we formulate an integer linear program (ILP) to solve the problem. The proposed cloud service routing scheme is validated by extensive numerical experiments.
Keywords :
integer programming; linear programming; telecommunication network reliability; telecommunication network routing; telecommunication services; wavelength division multiplexing; DC; ILP; WDM networks; access routes; cloud service routing scheme; cost scaling factors; data center; delay awareness; individual service paths; integer linear program; linear expression; link failure probability; mathematical approximation; objective function; optical network; service cost; service delay; service providers; transmission delay; Delays; Educational institutions; Optical fiber networks; Quality of service; Reliability; Routing; Wavelength division multiplexing; Cloud services; data center (DC); delay; link failure; service routing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Optical Communications and Networks (ICOCN), 2014 13th International Conference on
Conference_Location :
Suzhou
Type :
conf
DOI :
10.1109/ICOCN.2014.6987128
Filename :
6987128
Link To Document :
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