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Today, the global society is facing serious challenges in improving environmental performance, particularly with global warming, and resource management. Where the information and communication technology (ICT) industry is contributing to the global economy coupling with innovation and development of almost all the aspect of human life, but it also responsible for global CO2 emissions. In this paper,...
In order to support development of rural areas, and avoid that these areas are being depopulated, access to fast broadband networks can contribute by facilitating tele working, distance learning, ICT for industries and farming etc. In this paper we show how broadband and Fiber To The Home (FTTH) is developing in Denmark, and that FTTH is also being deployed in rural areas. A main reason for this is...
The paper provides an overview of the radio over fiber (RoF) technology and its potential use in heterogeneous wireless networks. Wireless communications have seen a huge growth in the last decade. It has been estimated that five in every six people in the entire world will have a mobile phone in 2010. The vast growing use of Internet on the mobile devices has also been increased significantly. In...
Telecommunications are evolving towards the unification of services and infrastructures. This unification must be achieved at the highest hierarchical level for a complete synergy of services. Therefore, one of the requirements is a multipurpose backbone network capable of supporting all the current and future services over the same infrastructure, offering high QoS levels. This paper analyzes different...
Topological routing is an alternative to traditional routing methods such as table routing or pre-calculated paths techniques, and it has been implemented for many different regular topologies such as Grid, Double Ring, Honeycomb or N2R. In relation to the Grid, topology under study in this paper, very good results have been achieved obtaining fast and reliable routing. This paper proposes the combination...
The paper presents an implementation analysis of Chordal ring structures using two modern heuristics namely Simulated Annealing and Genetic Algorithm. In recent years Chordal rings gained a lot of interest for physical topology of the next generation large-scale network infrastructure. Degree 3 Chordal ring structures possess small diameters, low average distances and easy routing schemes. For the...
In this paper we are analyzing the potential winnings of solving a very hard combinatorial optimization problem in connection with dimensioning cables and trenches for deployment of green field information and communication technology access networks. Firstly we motivate the problem by summarizing the two traditional approaches used to solve the mentioned task, namely; the shortest path spanning tree...
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