论文部分内容阅读
多节点大规模网络的中继传输存在额外干扰.为此,文中基于干扰模型提出一种联合功率控制的中继选择策略,即通过定义干扰系数和为中继节点建立干扰列表,在每次迭代中选取干扰系数最大的中继来进行功率调整,从而获得容量最大的无干扰中继.仿真结果表明:相比不考虑干扰的中继选择策略及避免干扰的用户协商中继选择策略,联合功率控制的中继选择策略能获得更大的网络容量;干扰的影响越大,文中提出的策略的作用越明显.
There is extra interference in relay transmission of multi-node large-scale network.Therefore, a joint power control relay selection strategy based on interference model is proposed in this paper, namely, by defining interference coefficient and establishing interference list for relay node, The best interference factor is selected to adjust the power and get the largest interference-free relay.The simulation results show that compared with the non-interference-free relay selection strategy and the interference-avoiding user negotiation relay selection strategy, the joint power The control strategy of relay selection can obtain more network capacity. The greater the impact of interference, the more obvious the effect of the proposed strategy is.