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.

Access networks for base stations in GSM systems are mainly based on microwave, millimeter-wave (MW/MMW) and fiber-optical technologies. This paper presents the recent trends of MW/MMW radio relay access networking with ...

GSM access networks are mainly based on microwave (μW), millimeter-wave (mmW) and fiberoptical links. This paper presents the actual trends of radio relay access networking with special focus on a newly opened 58 GHz ...

Optical transmission of microwave (MW) and millimeter-wave (MMW) signals have become an intensive research area in the last decade. There is a growing interest in optical processing of MW signals [1, 2], phased array ...

Density of microwave and millimeter-wave radio relay networks increased with unexpected speed in the last decade. For long time rain attenuation and thermal noise limitation were in the main focus of fixed radiolink design. ...

A new technique for remote upconversion of a 100 Mb/s BPSK microwave subcarrier signal is proposed and demonstrated. It is based on the insertion of an unbalanced Mach-Zehnder interferometer in a microwave fiber-optic link.

Various-depth field descriptions and their use are summarized. Effects in optical links are being investigated being of particular importance if QAM microwave signals are transmitted. In this framework modulator-induced ...

Microwave (MW) network analysis of optical circuits and systems is discussed in the paper. MW responses of some basic optical structures are shown in frequency and time domain. Some fundamental differences between network ...

Early GSM networks are getting older than a decade. First generation mobile systems cannot fully satisfy actual user expectations. New services like WAP, mobile internet, video streaming, etc. require higher capacity and ...