Expand or Oversize? Planning Internet Access Network in a Demand Growth Scenario
- PDF / 1,274,171 Bytes
- 19 Pages / 439.37 x 666.142 pts Page_size
- 110 Downloads / 151 Views
Expand or Oversize? Planning Internet Access Network in a Demand Growth Scenario Matheus Pereira Libório1 · Petr Iakovlevitch Ekel1 · Renata de Mello Lyrio2,3 · Patrícia Bernardes1 · Gustavo Luís Soares1 · Thiago Melo Machado‑Coelho3 Received: 27 January 2020 / Revised: 18 May 2020 / Accepted: 30 July 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Internet network design specialists are looking for technologies and strategies to deliver network service under increased demand conditions. The choice of strategies is based on applying optimization and decision-making methods to select the most appropriate cable network design considering criteria established by the problem definition. However, this definition is itself a decision problem that has not received analysis in the literature. In particular, one of the most important questions is the necessity to define an expansion strategy. The first alternative (expansion) is to design a network to serve consumers with Internet demand equal to or greater than the predefined one to expand the network annually to serve consumers that reach the predefined Internet speed. The second alternative (oversizing) is to design a network to serve consumers with future Internet demand (after 5 years) at or above that the predefined one. Considering this, the objective of this research is to define the most advantageous strategy of expansion planning to attend a 5 years forecasted Internet demand, considering: (1) the possibility of utilizing a Gigabit-capable Passive Optical Network technology; (2) the application of the minimal Steiner tree and Dijkstra algorithms in planning procedures; (3) the influence of economic and technological factors on the demand forecast; (4) the aggressive, moderate, and conservative scenarios in decision-making. The results show that the over-dimensioning strategy reduces network investment by between 30 and 41%, but that this reduction does not always lead to a market investment ratio higher than that observed in the expansion strategy. Keywords Internet forecast model · Geoprocessing · Optimization algorithms · Decision-making · Network planning strategies
* Thiago Melo Machado‑Coelho [email protected] Extended author information available on the last page of the article
13
Vol.:(0123456789)
Journal of Network and Systems Management
1 Introduction Studies reveal that Internet-based services will face a very challenging scenario [1]. First, because Internet demand is growing driven by increasing customer numbers [2], by the emergence of new technologies [3–5], and by applications of the Internet of Things (IoT) and Smart Cities (SC) systems [6]. Second, because Internet networks are unable to serve new customers due to technological limitations [7, 8], approach their physical limitations [9, 10]. More than two distinct challenges, the opposite direction between declining network capacity and growing Internet demand [11] signals that the scenario ahead calls for an urgent solution: expanding (curr
Data Loading...
