Zdravka Tchobanova

Cooperative spectrum sensing – overview

Cognitive radio is a technology that meets the growing needs of wireless communications, providing more opportunities to access the radio spectrum. The licensed users do not use the spectrum continuously. In order for the unlicensed ...  read more

Telecommunication system for green economy – a survey

The fast telecommunications development raises the question of power consumption in communication systems, as well as its impact on the environment. Another important issue is the electromagnetic pollution due to the use of these systems. ...  read more

Study of the factors influencing power consumption of FPGA-based designs

The paper presents results from the study of power consumption of basic circuit designs on FPGA with different VHDL descriptions, different elaborated and synthesized structures and realized on different devices. The study is performed ...  read more