Barnali Dey

Mrs Barnali Dey
Assistant Professor
Department of Electronics & Communication Engg.
S.M.I.T. (Under Sikkim Manipal University)
Majhitar, East Sikkim


Tentative Title: Spectrum sensing using Cognitive Radio and its application in Smart Grid

The exponential rise of the world population and insatiable growth in the demand for power, the age-old infrastructure of the presently existing power grid has resulted into numerous problems arising due to system reliability, power quality, and customer satisfaction. It is seen that the power grid has a complex environmental condition, dynamic topology changes, connectivity problems, interference, and fading which makes the wireless communication very challenging in power grid environments.

Cognitive radio network is recognized as a promising technology to address the communication and networking problems faced by new and upcoming wireless technologies. Traditionally the complete radio frequency (RF) spectrum is divided into number of sub bands and each of these sub bands are legally allocated to different licenced users by the government for long duration and large geographical areas. In order to overcome this limitation, Joseph Mitola in 1999 put forward the idea of a software radio that has the capability to adapt, aware, perceive and cognition. This laid the foundation of the Cognitive Radio a term coined by Mitola. The Cognitive Radio (CR) is the answer to enhance the utilization of the scarce spectrum. It is designed in a way so that it can provide opportunistic and very reliable communication between the users and the network wherever and whenever required. This is known as Dynamic Spectrum Access (DSA) where the CR user or secondary user (SU) utilize the frequency bands not utilized by the licenced user or primary user (PU). With this unique feature, CR network have the potential to serve as an integrated sensing and communication system for many real-world application like the smart grid (SG). The SG is mainly the modernization of generation, transmission, and distribution of a power grid system by integrating advanced information and communication technologies (ICTs) infrastructure. The CR network has a promising ability to improve the overall network performance with its adaptive operations to the existing spectrum conditions and increase spectrum utilization in SG environments via spectrum sensing.

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