Power Conservation in Cognitive Radio Networks using Hybrid Routing Algorithms

Abstract

Cognitive radios are used in number of networking areas such as spectrum sensing that is the most important application of networking. It is important to properly utilize spectrum so to stop the wastage of spectrum .in many applications cognitive radio networks co-exist with other cognitive radio networks, they use same spectrum without causing any interference. A number of methods are used for spectrum sensing which Non-cooperative spectrums are and sensing Cooperative spectrum sensing. In a single cognitive radio have a problem of interference; it’s of the issues of shading from the primary user, a secondary primary user act as receiver able to hear both primary users and signal from cognitive radio network. In the proposed system we developed a protocol which is cognitive leach protocol to find the route in the Cognitive radio network by considering the energy of each primary user. Minimum distance is found in the proposed system with the help of C-Leach to save the energy spectrum in cognitive radio networks for primary users.