Cost effectiveness of site reduction in optical access network: A CapEx based comparison of different technologies

Lange, Christoph; Breuer, D.; Huelsermann, Ralf

doi:10.1109/icton.2009.5185100

Cited by 9 publications

(7 citation statements)

References 5 publications

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“…They conclude that while employing a network sharing scheme increases the cost per home connected and the payback period, the required initial investment is significantly reduced. However, realizing considerable cost savings will require the operators to think beyond sharing only feeder fiber cables or site-reduction [53]. In addition to cost reduction, infrastructure sharing can facilitate the expansion of coverage, therefore, helping the operators grow their customer base and access new sources of revenue.…”

Section: Network Sharingmentioning

confidence: 99%

Techno-economics of Optical Access Network Sharing

Afraz¹

2021

Preprint

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Several parallel trends, including the growing number of Internet reliant devices/services, increasing Internet penetration rates, and the continuing popularity of bandwidth-hungry multimedia content contribute to the exponential surge of Internet traffic. The combination of these trends could imply a considerable increase in network infrastructure investment for the telecom and broadband operators. In addition, the high cost of initial investment could escalate the market barriers to entry for the innovative service providers incapable of deploying their own network infrastructure. In this dissertation, we explore if and how enabling optical access network sharing could cultivate new network ownership and business models that simultaneously keep the end-user subscription fees low and facilitate the market entry for the smaller service providers. We aim to identify and address the technological and economic barriers of optical access network sharing. The broad scope of this dissertation concerns the inter-operator sharing of optical access networks which connect the end-users to the operators' network in the last-mile. The access segment of the communications network is recognized to be the most costly due to its deployment scale. Therefore, a reduction in cost in the access will have a multi-fold impact on the overall capital expenditure for network deployments. The dissertation focuses in particular on PONs as the most widespread type of optical access networks. The central argument of the present research is that network infrastructure/resource sharing has the potential to reduce the capital and operational expenditure of the network operators. This will allow for more competition as the market entrance cost decreases. We first address the lack of tenant operators' adequate control over the shared resources in a multi-tenant PON as a technological barrier. We provide a solution to strengthen the network operators' control over their share of the network in a multi-tenant PON. This is made possible by allowing the operators to schedule the transmission over the network using tailored algorithms to meet their requirements (e.g., latency and throughput). The dissertation argues that providing a virtual (software) instance of the DBA algorithm as opposed to the inflexible hardware implementation first enables the coexistence of various services on the PON and second, improves the overall utilization of the network capacity. While the virtualization of the DBA removes the technical barrier for the inter-operator resource sharing, it does not come with a natural incentive for the operators to share their resources with competitors. Therefore we tackle the lack of incentive for sharing excess network capacity in PON by providing monetary compensation in return for sharing. We model the multi-tenant optical access network with multiple coexisting operators as a market where they can exchange their excess capacity. We propose a sealed-bid multi-item double auction to enable capacity trading between the network operators. Through mathematical proof and market simulation/visualization, we prove that the proposed auction mechanism meets the essential requirements for an economic robust market mechanism (e.g., incentive compatibility, individual rationality, and budget balance). This provides trusted market conduct in the presence of a central authority (e.g., the public infrastructure provider) that all the operators trust.

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Section: Network Sharingmentioning

confidence: 99%

Techno-economics of Optical Access Network Sharing

Afraz¹

2021

Preprint

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“…By other figures, the number of announced network sharing agreements between network operators worldwide has increased almost 20 fold in 7 years (five agreements in 2010 and 98 in 2017) [77]. We believe this vision will require the operators to think beyond simply sharing the feeder fibre cables or site-reduction [78] as a cost-saving approach towards their infrastructure.…”

Section: Fixed Access Network Sharing For 5gmentioning

confidence: 99%

Evolution of Access Network Sharing and Its Role in 5G Networks

et al. 2019

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This paper details the evolution of access network sharing models from legacy DSL to the most recent fibre-based technology and the main challenges faced from technical and business perspectives. We first give an overview of existing access sharing models, that span physical local loop unbundling and virtual unbundled local access. We then describe different types of optical access technologies and highlight how they support network sharing. Next, we examine how the concept of SDN and network virtualization has been pivotal in enabling the idea of “true multi-tenancy”, through the use of programmability, flexible architecture and resource isolation. We give examples of recent developments of cloud central office and OLT virtualization. Finally, we provide an insight into the role that novel business models, such as blockchain and smart contract technology, could play in 5G networks. We discuss how these might evolve, to provide flexibility and dynamic operations that are needed in the data and control planes.

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“…By other figures, the number of announced network sharing agreements between network operators worldwide has increased almost 20 fold in 7 years (five agreements in 2010 and 98 in 2017) [66]. We believe this vision will require the operators to think beyond simply sharing the feeder fibre cables or site-reduction [67] as a cost-saving approach towards their infrastructure.…”

Section: Fixed Access Network Sharing For 5gmentioning

confidence: 99%

Evolution of Access Network Sharing and its Role in 5G Networks

Afraz¹,

Slyne²,

Gill³

et al. 2019

Preprint

View full text Add to dashboard Cite

This paper details the evolution of access network sharing models from legacy DSL to the most recent fibre-based technology and the main challenges faced from a technical and business perspectives. We first give an overview of existing access sharing models, that span physical local loop unbundling and virtual unbundled local access. We then describe different types of optical access technologies and highlight how they support network sharing. Next, we examine how the concept of SDN and network virtualization has been pivotal in enabling the idea of “true multi-tenancy”, through the use of programmability, flexible architecture and resource isolation. We give examples of recent developments of cloud central office and OLT virtualization. Finally, we provide an insight into the role that novel business models, such as blockchain and smart contract technology, could play in 5G networks. We discuss how these might evolve, to provide flexibility and dynamic operations that are needed in the data and control planes.

show abstract

Cost effectiveness of site reduction in optical access network: A CapEx based comparison of different technologies

Cited by 9 publications

References 5 publications

Techno-economics of Optical Access Network Sharing

Techno-economics of Optical Access Network Sharing

Evolution of Access Network Sharing and Its Role in 5G Networks

Evolution of Access Network Sharing and its Role in 5G Networks

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