彭艺, 杨唐钢, 龙华, 张耸. 基于能量效率的最优D2D中继用户选择接入算法[J]. 云南大学学报(自然科学版), 2019, 41(3): 470-475. doi: 10.7540/j.ynu.20180280
引用本文: 彭艺, 杨唐钢, 龙华, 张耸. 基于能量效率的最优D2D中继用户选择接入算法[J]. 云南大学学报(自然科学版), 2019, 41(3): 470-475. doi: 10.7540/j.ynu.20180280
PENG Yi, YANG Tang-gang, LONG Hua, ZHANG Song. The optimal D2D relay location user access algorithm based on the energy efficiency[J]. Journal of Yunnan University: Natural Sciences Edition, 2019, 41(3): 470-475. DOI: 10.7540/j.ynu.20180280
Citation: PENG Yi, YANG Tang-gang, LONG Hua, ZHANG Song. The optimal D2D relay location user access algorithm based on the energy efficiency[J]. Journal of Yunnan University: Natural Sciences Edition, 2019, 41(3): 470-475. DOI: 10.7540/j.ynu.20180280

基于能量效率的最优D2D中继用户选择接入算法

The optimal D2D relay location user access algorithm based on the energy efficiency

  • 摘要: 设备终端直通(Device-to- Device,D2D)中继通信可以复用蜂窝小区用户频谱资源,提升了频谱效率和用户容量,但同时也面临着能耗开销增大的问题. 针对D2D中继的用户接入问题,提出一种改进的基于能量效率(Energy efficiency,EE)的最优D2D中继用户接入算法. 算法首先确定D2D中继的位置集合的,然后分别计算中继模式和直接模式下的能量效率和传输速率,最后再选择能量效率高的方式进行用户接入. 当两种模式的能量效率相同时,则选择传输速率高的方式进行用户接入,实验仿真结果表明,文中所提的算法能量效率较高,能有效提高用户的接入体验.

     

    Abstract: The introduction of D2D relay technology in traditional cellular communication can not only effectively improve the utilization of spectrum resources, but also effectively enhance the user's access experience. To solve the problem of D2D relay user access, an optimal D2D relay user access algorithm based on energy efficiency is proposed. Firstly, the set of optimal relay locations is determined and the feasible range of relay is calculated. Then the energy efficiency in relay mode and direct mode is calculated according to the energy efficiency formula. Finally, the high energy efficiency mode is selected for user access.The high transmission rate will be selected when the energy efficiency of the two modes is the same. The experimental results show that the proposed algorithm has lower complexity and improves the user's access volume effectively.

     

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