摘要
为了在更加贴近实际的环境下研究D2D用户的工作模式选择,提出一种新的异构小蜂窝网络中的D2D模式选择方法。该方法通过分析D2D链路的传输功率和信道开销,给出了D2D链路的传输代价函数表达式,以D2D链路传输代价为标准并使用联合决策算法对D2D链路的模式选择进行控制,使得系统D2D链路的传输总代价达到最小。理论分析和仿真结果表明,所提出的方法能够有效的减小系统传输功耗。
In order to research on the mode selection for device-to-device （D2D） communications in the envi- ronment that closer to reality, a new model selection method for D2D communications is proposed in heterogeneous and small cell networks. In this method, the transmission power and channel overhead for the D2D links are ana- lyzed and the transmission cost function expression of the D2D link is given. With the transmission cost for D2D links as the standard, joint decision-making algorithm are used for the control of mode selection for D2D links, which makes the total cost of the transmission system to the minimum. Analysis and simulation demonstrate that the proposed method can effectively reducing the transmission power.
出处
《科学技术与工程》
北大核心
2015年第17期66-71,108,共7页
Science Technology and Engineering
基金
高性能微波频谱分析仪研制与应用开发项目(2012YQ200224)资助
关键词
D2D通信
模式选择
小蜂窝
D2D communication mode selection small-cells
