异构网络下基于D2D通信机制的负载均衡策略
发布时间：2018-11-10 12:01
【摘要】：为解决异构网络结构下负载分布不均衡问题,提出一种基于D2D中继传输的负载均衡策略,将宏小区内服务质量较差的用户转移到空闲微小区,将释放后的资源分配给无法接入的孤立用户通信;由于D2D中继链路复用宏小区资源会给宏小区用户带来干扰,以减小复用干扰为目的,提出一种基于能耗最优的中继选择算法。仿真结果表明,所提负载均衡策略有效提升了系统性能,所提中继选择算法能有效降低系统功耗,减少异构网络用户之间的干扰。
[Abstract]:In order to solve the problem of unbalanced load distribution in heterogeneous network structure, a load balancing strategy based on D2D relay transmission is proposed to transfer users with poor quality of service in macro cell to idle microcell. Allocating the released resources to isolated users who cannot access them; Since D2D relay link multiplexing macro cell resources will bring interference to macro cell users, a relay selection algorithm based on optimal energy consumption is proposed in order to reduce multiplexing interference. Simulation results show that the proposed load balancing strategy can effectively improve the performance of the system, and the proposed relay selection algorithm can effectively reduce the power consumption of the system and reduce the interference between users in heterogeneous networks.
【作者单位】： 西安邮电大学通信与信息工程学院;
【基金】：国家自然科学基金项目(61501371) 国家863高技术研究发展计划基金项目(2014AA01A703) 陕西省自然科学基础研究基金项目(2011JM8027)
【分类号】：TN929.5
[Abstract]:In order to solve the problem of unbalanced load distribution in heterogeneous network structure, a load balancing strategy based on D2D relay transmission is proposed to transfer users with poor quality of service in macro cell to idle microcell. Allocating the released resources to isolated users who cannot access them; Since D2D relay link multiplexing macro cell resources will bring interference to macro cell users, a relay selection algorithm based on optimal energy consumption is proposed in order to reduce multiplexing interference. Simulation results show that the proposed load balancing strategy can effectively improve the performance of the system, and the proposed relay selection algorithm can effectively reduce the power consumption of the system and reduce the interference between users in heterogeneous networks.
【作者单位】： 西安邮电大学通信与信息工程学院;
【基金】：国家自然科学基金项目(61501371) 国家863高技术研究发展计划基金项目(2014AA01A703) 陕西省自然科学基础研究基金项目(2011JM8027)
【分类号】：TN929.5
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