异构小蜂窝网中D2D模式选择的联合决策方法

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。

Mode selection of a joint decision-making method for D2D communication in heterogeneous and small cell networks

In order to research on the mode selection for device-to-device(D2D) communications in the environment that closer to reality. A new model selection method for D2D communications is proposed in heterogeneous and small cell networks. In this method, we analyze transmission power and channel overhead for the D2D links and 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. That makes the total cost of the transmission system to the minimum. Analysis and simulation demonstrate that the proposed method in this paper can effectively reducing the transmission power.