Abstract
With the development of LTE-A technology, spectrum aggregation, relay and other technologies have been applied to the next generation of wireless communication network. However, current research is mostly focus on only one kind of technology, when these technologies coming together, a lot of prerequisites often have been destroyed, and it becomes difficult to achieve. In this paper, we take spectrum aggregation and collaboration relay technology together, and propose a dynamic spectrum aggregation scheme based on energy-saving in cognitive relay network. Besides, through the simulation, we analysed the network performance and energy efficiency of the proposed algorithm.
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