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Several system applications require optical transmission of very high bit-rate digital as well as microwave and millimeter-wave carrier signals. Without completeness, a few recent applications are mentioned such as: 5G and Radio-over-Fiber (RoF) systems, Gigabit Passive Optical Networks (GPON), optical interconnection within Cloud for telecommunication Network Elements (NE), upgrade of mobile access,...
Reliability and availability considerations are discussed in this paper with special focus on ‘cloud based’ Mobile Switching and Application Servers (MSS and AS). Before the extensive deployment of cloud based telecom networks an essential question shall be answered: Will cloud technology ensure the ‘carrier grade’ requirements that are well established and proven on ‘legacy telecommunications’ hardware?...
Fixed access networks widely employ fiber-optical techniques due to the extremely wide bandwidth offered to subscribers. In the recent years enormous increase of user data is visible in mobile systems too. Therefore the importance of fiber-optical techniques within the fixed transmission/transport part of mobile systems is inevitably increasing. This paper summarizes a few reasons and gives examples...
Eliminating dispersion effects fast is a crucial concern when building next generation optical networks. Dispersion penalty has been investigated widely in 1550nm fiber-optical links transmitting different kind of signals. However, only a few papers addressed the harmonics generation effect. This paper presents theoretical and experimental results on the estimation of harmonic effects in the transmission...
In this paper details of a nationwide fixed access transmission network upgrade is presented with special focus on GSM network modernization for EDGE (Enhanced Data rates for GSM Evolution) deployment.
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