Abstract: Cognitive radio technology helps in conspiring wireless system for adequate deployment of radio spectrum with it’ls anticipate technique, self-adaptation and spectrum allocation. Spectrum allocation is an adequate method of allay the scarcity of radio spectrum dilemma by allowing unlicensed users (secondary users) to coincide with licensed users (primary users) under the plight of protecting the later from adverse interference. In this study, we attention on the throughput maximization of spectrum allocation cognitive radio networks and introduce an innovative cognitive radio scheme that will significantly advance their achievable throughput more correctly, a novel receiver and a cage structure for spectrum allocation is introduced. The problem of excellent power allocation approach that maximizes the erotic quantity of the system under moderate transmits and interference power restraint is also studied.