Research On Interference Coordination Scheme In Ultra-dense Small Cell Deployments

Social development will lead to changes in the way mobile and wireless communication systems are used.These developments have caused an explosion of mobile and wireless traffic volume.Network scalability and efficiency are required to support a large number of devices with very low complexity.As a result,the concept of Heterogeneous Networks should be enhanced by ultra-dense deployment in the 5G network.It addresses the high traffic demands via infrastructure densification and provides a good performance of hot spots coverage enhancement and traffic load balancing.However,co-channel interference and the decline of resource utilization are significant in ultra-dense deployment networks.In this paper,based on the analysis of the interference environment under typical scenes,the author proposed several interference coordination schemes,including the self-organized cell clustering scheme,Small Cell dynamic on/off,power adjustment scheme and large scale CoMP.These schemes are designed and evaluated from the module design,coordination and control,resource optimization and other aspects.In the end,simulation results show that the proposed strategy improves system performance in hot-spot users' throughput and can contribute to the system energy efficiency ratio in ultra-dense networks.