Service and resource differentiation in shared-path protection environments to maximize network operator's revenues
Visualitza/Obre
Cita com:
hdl:2117/16105
Tipus de documentArticle
Data publicació2011-02
EditorIEEE Press. Institute of Electrical and Electronics Engineers
Condicions d'accésAccés obert
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Abstract
Network operators are facing hard competition
for opportunities in the telecommunications market, forcing network investments to be carefully evaluated before the decision-making process. A great part of core network
operators’ revenues comes from the provisioned connectivity services. Taking this premise as our starting point, we first
examine the provisioning of differentiated services in current shared-path protection (SPP) environments. This analysis reveals that current resource assignment policies are only able to provide a very poor grade of service to the supported best-effort traffic. Aiming to improve this performance, a novel resource partitioning scheme called diff-WS is proposed, which differentiates those wavelengths supporting each class
of service in the network. As a major goal of this paper, the benefits of diff-WS over current resource assignment policies are assessed from an economic perspective. For
this purpose, the network operator revenues maximization (NORMA) problem is presented to design the optical network such that the operator’s revenues are maximized. To solve
NORMA, we derive statistical models to obtain, given a certain grade of service, the highest traffic intensity for each class of service and resource partitioning scheme. These models turn NORMA into a nonlinear problem, which is finally addressed as
an iterative approach, solving an integer linear programming (ILP) subproblem at each iteration. The obtained numerical results on several network topologies illustrate that diff-WS maximizes resource utilization in the network and, thus, the network operator’s profit.
CitacióVelasco, L. [et al.]. Service and resource differentiation in shared-path protection environments to maximize network operator's revenues. "Journal of optical communications and networking", Febrer 2011, vol. 3, núm. 2, p. 117-126.
ISSN1943-0620
Col·leccions
- Departament d'Arquitectura de Computadors - Articles de revista [1.044]
- Departament de Teoria del Senyal i Comunicacions - Articles de revista [2.491]
- GCO - Grup de Comunicacions Òptiques - Articles de revista [235]
- CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla - Articles de revista [154]
Fitxers | Descripció | Mida | Format | Visualitza |
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NORMA.pdf | 1,020Mb | Visualitza/Obre |