Konstantinos Trichias

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The term Intelligent Transportation Systems (ITS) refers to adding information and communications technology to transport infrastructure and vehicles. The IEEE 802.11p standard is considered the main candidate for communication within the context of ITS and it performs well for active safety use cases thanks to its very low delay. Nonetheless, there are(More)
— The advent of Active Antenna Systems has provided new ways and features for increasing the capacity of mobile networks in order to cope with the ever increasing traffic demand. One such feature is the vertical sectorisation (VS) technique where a cell is divided into an inner and an outer sector by using a second downtilted beam from one antenna. The two(More)
Vertical Sectorisation (VS) is a feature that exploits the capabilities of Active Antenna Systems (AAS) to improve service performance and network capacity, by splitting a single cell into an inner and outer sector. The attained gains primarily depend on the suitable and timely (de)activation of VS in response to the observed/estimated traffic distribution(More)
Active Antenna Systems (AAS) technology is one of several advanced features that enable a mobile network operator to cost-efficiently increase its network capacity to cope with the exponential mobile data traffic growth and the ever more demanding performance requirements. AAS can be exploited to perform e.g. Virtual Sectorisation (ViS), i.e. using(More)
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