Optical Transport Solutions for 5G Fixed Wireless Access [Invited]

Skubic, Björn; Fiorani, Matteo; Tombaz, Sibel; Furuskar, A.; Mårtensson, Jonas; Monti, Paolo

doi:10.1364/jocn.9.000d10

Cited by 44 publications

(59 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The capacity required in the optical x-haul depends on the functional split between the BBU and RRH [8], [12]. Figure 1 shows different functional split options.…”

Section: G Fwa Network Architectures and Various X-haul Optionsmentioning

confidence: 99%

“…The capacity requirements of each split option shown in Fig. 1 are calculated based on 5G system that operates with 200 MHz of bandwidth, 64 QAM, MIMO antenna array of 8X12, and 96 antenna ports [8].…”

Section: G Fwa Network Architectures and Various X-haul Optionsmentioning

confidence: 99%

“…1), if Option 1 is selected a 1 Gbps capacity is required in the x-haul because most of the baseband processing functions are placed at the cell site. However, if Option 8 is selected, in a 5G scenario, more than 800 Gbps are required in the x-haul link [8] because the baseband processing takes place at the centralized BBU. As illustrated in Fig.…”

Section: G Fwa Network Architectures and Various X-haul Optionsmentioning

confidence: 99%

“…More precisely, the choice of a specific functional split determines the capacity and latency requirements of the x-haul [7]. As a result, different types of optical technologies and architectures, e.g., point to point (PtP) optical links and point to multipoint (PtMP) passive optical networks (PON), can be used in the x-haul [8]. In addition, FWA is serving fixed users.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Optical Transport Network Design for 5G Fixed Wireless Access

Ranaweera

Monti

Skubic

et al. 2019

J. Lightwave Technol.

Self Cite

View full text Add to dashboard Cite

The fifth generation of mobile technology, 5G is anticipated to be a significant leap in the evolution of mobile communication. 5G will be designed to attain 1000 times higher data volumes, 10 times lower latency, and 100 times more connected devices than its predecessor, 4G. Due to 5Gs ability to sustain high bandwidth per unit area, 5G is considered to be a cost-efficient solution to provide Fixed Wireless Access (FWA) to households on a large scale. FWA is seen as an attractive alternative for fixed broadband access in scenarios where last mile access based on wired technologies is not economically viable. Whilst approaches for enhancing user experience in a 5G FWA environment are investigated in the research community, the problem of providing cost-effective high capacity transport for FWA deployments still remains a major challenge. This is particularly challenging due to diverse transport network architectures and requirements imposed by different 5G deployment models. This paper addresses this problem by formulating a generalized joint-optimization framework to simultaneously plan wireless access and optical transport for 5G FWA networks in order to minimize the deployment cost whilst meeting various network requirements. We demonstrate the applicability of the proposed framework by applying it to a real scenario with a range of deployment options and where different types of optical x-haul solutions are considered. The results provide a cornerstone for deployment strategies that will be imperative for realizing a future-proof and cost-effective broadband access network.

show abstract

“…The capacity required in the optical x-haul depends on the functional split between the BBU and RRH [8], [12]. Figure 1 shows different functional split options.…”

Section: G Fwa Network Architectures and Various X-haul Optionsmentioning

confidence: 99%

Section: G Fwa Network Architectures and Various X-haul Optionsmentioning

confidence: 99%

Section: G Fwa Network Architectures and Various X-haul Optionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optical Transport Network Design for 5G Fixed Wireless Access

Ranaweera

Monti

Skubic

et al. 2019

J. Lightwave Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Optical network infrastructure is a critical enabler of CDN connectivity and is crucial to support 5G requirements at the access segment as well . Conversely, inherent vulnerabilities of the optical network infrastructure can be exploited to deliberately disrupt the overlay CDN services.…”

Section: Introductionmentioning

confidence: 99%

Content placement in 5G‐enabled edge/core data center networks resilient to link cut attacks

et al. 2020

View full text Add to dashboard Cite

High throughput, resilience, and low latency requirements drive the development of 5G‐enabled content delivery networks (CDNs) which combine core data centers (cDCs) with edge data centers (eDCs) that cache the most popular content closer to the end users for traffic load and latency reduction. Deployed over the existing optical network infrastructure, CDNs are vulnerable to link cut attacks aimed at disrupting the overlay services. Planning a CDN to balance the stringent service requirements and increase resilience to attacks in a cost‐efficient way entails solving the content placement problem (CPP) across the cDCs and eDCs. This article proposes a framework for finding Pareto‐optimal solutions with minimal user‐to‐content distance and maximal robustness to targeted link cuts, under a defined budget. We formulate two optimization problems as integer linear programming (ILP) models. The first, denoted as K‐best CPP with minimal distance (K‐CPP‐minD), identifies the eDC/cDC placement solutions with minimal user‐to‐content distance. The second performs critical link set detection to evaluate the resilience of the K‐CPP‐minD solutions to targeted fiber cuts. Extensive simulations verify that the eDC/cDC selection obtained by our models improves network resilience to link cut attacks without adversely affecting the user‐to‐content distances or the core network traffic mitigation benefits.

show abstract