Optical technologies allow the end-user to take advantage of a very high bitrate access. This in ... more Optical technologies allow the end-user to take advantage of a very high bitrate access. This in turn modifies traffic patterns to be supported by access and aggregation (metro) networks. The present paper first proposes tentative traffic scenarios to assess future capacity requirements for these networks. It is shown that the current aggregation architecture based on primary and secondary aggregation rings should be reconsidered to limit potential bottlenecks and to take account of both infrastructure costs and potential energy savings. The paper then presents alternative architectures to revise and move the boundaries existing today between access and aggregation networks. A first alternative architecture is fully centralized and performs traffic aggregation in a central location. The second alternative architecture proposes to locate the first aggregation points (called “Next Generation Points of Presence”) on the primary aggregation ring and to centralize control functions.
Development of new applications and the introduction of innovative technologies can lead to revis... more Development of new applications and the introduction of innovative technologies can lead to revise network architectures in order to build sustainable broadband infrastructures. The present paper describes the main drivers and enabling technologies leading to change the current fixed and mobile network architectures. The limitations of the aggregation network are briefly shown by a description of the legacy network architecture. The advantages of optical access technologies are also depicted. In order to avoid certain bottlenecks in the aggregation segment, an advanced solution called Next Generation Point of Presence (NG-PoP) is presented. The main idea of NG-PoP architecture is to move the existing boundaries between access and aggregation networks. Finally, the NG-PoP architecture is analyzed and compared to the legacy network one according to several criteria such as Quality of Service (QoS), cost criteria, power savings and Fixed Mobile Convergence (FMC) features.
Optical technologies allow the end-user to take advantage of a very high bitrate access. This in ... more Optical technologies allow the end-user to take advantage of a very high bitrate access. This in turn modifies traffic patterns to be supported by access and aggregation (metro) networks. The present paper first proposes tentative traffic scenarios to assess future capacity requirements for these networks. It is shown that the current aggregation architecture based on primary and secondary aggregation rings should be reconsidered to limit potential bottlenecks and to take account of both infrastructure costs and potential energy savings. The paper then presents alternative architectures to revise and move the boundaries existing today between access and aggregation networks. A first alternative architecture is fully centralized and performs traffic aggregation in a central location. The second alternative architecture proposes to locate the first aggregation points (called “Next Generation Points of Presence”) on the primary aggregation ring and to centralize control functions.
Development of new applications and the introduction of innovative technologies can lead to revis... more Development of new applications and the introduction of innovative technologies can lead to revise network architectures in order to build sustainable broadband infrastructures. The present paper describes the main drivers and enabling technologies leading to change the current fixed and mobile network architectures. The limitations of the aggregation network are briefly shown by a description of the legacy network architecture. The advantages of optical access technologies are also depicted. In order to avoid certain bottlenecks in the aggregation segment, an advanced solution called Next Generation Point of Presence (NG-PoP) is presented. The main idea of NG-PoP architecture is to move the existing boundaries between access and aggregation networks. Finally, the NG-PoP architecture is analyzed and compared to the legacy network one according to several criteria such as Quality of Service (QoS), cost criteria, power savings and Fixed Mobile Convergence (FMC) features.
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Papers by Moufida Feknous
paper then presents alternative architectures to revise and move the boundaries existing today between access and aggregation networks. A first alternative architecture is fully centralized and performs traffic aggregation in a central location. The second alternative architecture proposes to locate the first aggregation points (called “Next Generation Points of Presence”) on the primary aggregation ring and to centralize control functions.
paper then presents alternative architectures to revise and move the boundaries existing today between access and aggregation networks. A first alternative architecture is fully centralized and performs traffic aggregation in a central location. The second alternative architecture proposes to locate the first aggregation points (called “Next Generation Points of Presence”) on the primary aggregation ring and to centralize control functions.