A CONGLOMERATE INTERDEPENDENT INTERFACE IN COGNITIVE RADIO AD HOC NETWORKS

摘要

The main objective of this paper is to reduce the interference from primary user to the secondary user by using percolation threshold. Cognitive radio networks the signal reception quality of a secondary user degrades due to interference from multiple heterogeneous primary networks. The connectivity of such a cooperative secondary network from a percolation based perspective, in which each secondary network's user may have other secondary network user acting as relay. The connectivity of this cooperative secondary network is characterized in terms of percolation threshold. The ad hoc network doesn't require a centralized base station; multiple numbers of nodes creates a stability and share the spectrum within the cooperated networks. The node in a multiple cooperated networks forms a router. In this paper we are investigating the cognitive radio networks with underlay approach, the primary user and secondary user transmits same time but the secondary user is considered for lower priority in spectrum use.