In view of the problem that the node energy consumption is not balanced and system survival time unbalanced

put forward a kind of energy consumption balancing communication system based on two-way relay (TWR) in Cognitive radio networks (CRN). The system consists of source node and destination node

two-way relay (TWR) and receiving nodes

each node distribute initial energy

through setting up reasonable transmitted power to achieve power normalization processing

balance the node energy

in order to prevent the part of the node perish due to run out of energy

to realize Cognitive radio network (CRN) node energy equilibrium and maximize survival of life. Simulation results show that the proposed based on the normalized energy equalization algorithm can maximize efficiency

extend the system survival time while improve the utilization ratio of energy.