论文标题
无人用的多路NOMA网络具有残留硬件障碍
UAV-Aided Multi-Way NOMA Networks with Residual Hardware Impairments
论文作者
论文摘要
在本文中，我们研究了无人机（UAV）的非正交多访问（NOMA）多路传递网络（MWRNS）。多个地面用户旨在通过放大和前向（AF）无人机中继交换其共同信息。具体而言，考虑到收发器的残留硬件损伤（RHI）的现实假设。为了评估所考虑的网络的性能，我们得出可实现的总和率（ASR）的分析表达式。此外，我们通过以\ emph {高信噪比（SNR）斜率}和\ emph {高SNR功率偏移}来调用ASR的仿射扩展来进行渐近分析。数值结果表明：1）与正交多访问（OMA）相比，所提出的网络可以显着改善ASR，因为它可以从$ \ left [{\ left（{m -1} \ right）/2} \ right] + 1 $ 1 $至2降低时间插槽。 2）发射器和接收器的RHI对所考虑网络的ASR都有相同的影响。
In this paper, we study an unmanned aerial vehicle (UAV)-aided non-orthogonal multiple access (NOMA) multi-way relaying networks (MWRNs). Multiple terrestrial users aim to exchange their mutual information via an amplify-and-forward (AF) UAV relay. Specifically, the realistic assumption of the residual hardware impairments (RHIs) at the transceivers is taken into account. To evaluate the performance of the considered networks, we derive the analytical expressions for the achievable sum-rate (ASR). In addition, we carry out the asymptotic analysis by invoking the affine expansion of the ASR in terms of \emph{high signal-to-noise ratio (SNR) slope} and \emph{high SNR power offset}. Numerical results show that: 1) Compared with orthogonal multiple access (OMA), the proposed networks can significantly improve the ASR since it can reduce the time slots from $\left[ {\left( {M - 1} \right)/2} \right] + 1$ to 2; and 2) RHIs of both transmitter and receiver have the same effects on the ASR of the considered networks.
