Resource-Efficient HAPS-RIS Enabled Beyond-Cell Communications

Energy-Efficient Wireless Cellular Communications through Network Resource Dynamic Adaptation

Cellular networks represent one of the major energy consumers of communication networks and their contribution to the global carbon footprint and energy consumption continuously and rapidly increases. Improving energy efficiency of the cellular access networks become an important requirement and has recently gained considerable attention of the research community and operators. In this paper, i...

Dimensioning multicast-enabled communications networks

Quantum communications and beyond.

We introduce the concept of encoding and manipulation of information on single photons. This is exploited in the technique of quantum cryptography to distribute random bit strings in a secure way. More general quantum information processing requires a conditional interaction between separate photons. This can be achieved by exploiting the interference between two photons at a beam-splitter and ...

Trust Enabled CARE Resource Broker

The objective of the grid system is to allow heterogeneous geographically distributed computational resources to be shared, coordinated and utilized for solving large scale problems. Grid users are able to submit and execute tasks on remotely available grid resources. Resource management is a vital part of a grid computing system. The notion of trust is used in resource management of grid compu...

Prospects of Graphene-enabled Wireless Communications

Among these, a particularly promising emerging field is graphene-enabled wireless communications. Wireless communications among nanosystems cannot be achieved by simply reducing the size of classical metallic antennas, since that would impose the use of very high resonant frequencies in the optical range. Due to the expectedly very limited power of nanosystems, the low mobility of electrons in ...