Quality of service parameters of cognitive radio, like, bandwidth, throughput and spectral efficiency are optimized using adaptive and demand based genetic algorithm. Simulation results show that the proposed method gives better real life solution to the cognitive radio network than other known approach. Keywords—adaptive genetic algorithm, bandwidth, cognitive radio, spectrum sensing, throughput.

The emerging cognitive radio system can sense and adapt to the wireless environment in which it operates. Cognitive radio with intelligent capabilities of both radio link and network layers is capable of transmitting in an optimized way across the available signal dimensions allowing a potential huge increase in the prospects for spectrum efficiency, co-existence, compatibility and interoperabi...

Cognitive radio is a transforming and revolutionary technology that represents a paradigm shift in the design of wireless systems, as it allows agile and efficient utilization of the radio spectrum by offering the ability of radio sensing, self-adaptation, and dynamic spectrum sharing. In this paper the use of cooperative spectrum sensing in cognitive radio systems to enhance the reliability of...

Cognitive radio is a revolutionary technology that allows efficient, adaptable and intelligent use of spectrum without causing interference to the current licensed users. For cognitive radio adaptability, optimal usability and the power to evolve are the major factors that set apart an evolutionary machine. This paper introduces the concept of spectrum and network heterogeneity in case of cogni...

Cognitive Radio allows opportunistic spectrum access (OSA) of licensed frequency bands by unlicensed users so as to reduce spectrum scarcity led by the increasing market demands. Spectrum sensing is an essential mechanism for a cognitive radio system. Therefore attention should be given towards the security aspects of spectrum sensing in cognitive radio. This paper analyses the two protocols me...

For cognitive radio networks, there is a major spectrum sensing problem, i.e. dynamic spectrum management. It is an important issue to sense and identify the spectrum holes in cognitive radio networks. The first-order derivative scheme is usually used to detect the edge of the spectrum. In this paper, a novel spectrum sensing technique for cognitive radio is presented. The proposed algorithm of...

This paper describes a novel self-optimized approach for resource management based on the cognitive radio in the cellular networks. The cognitive radio techniques offer several features like autonomy, sensing and negotiation. The use of cognitive radio approach gives greater autonomy to the base stations in the cellular networks. This autonomy allows an increase in flexibility to deal with new ...

This set of contributions is addressing the impact of cognitive radio on the regime of radio spectrum governance. To avoid harmful interference the current paradigm of spectrum governance uses the principle of separation. Thereby each application and user or user group is being assigned a specific part of the spectrum, using the dimensions of frequency, time and location. Cognitive radio, a spe...

In this paper, we investigate how Cognitive Radio as a means of communication can be utilized to serve a smart grid deployment end to end, from a home area network to power generation. We show how Cognitive Radio can be mapped to integrate the possible different communication networks within a smart grid large scale deployment. In addition, various applications in smart grid are defined and dis...

Cognitive radio is the restorative technology to authorize the efficient usage of restricted natural resource radio frequency spectrum for the wireless devices. The technology empowers the telecommunication industry by renovating the traditional static spectrum access approach to dynamic spectrum access to stimulate the unlicensed users to access underutilized licensed band; without creating an...