arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.02631eess.SPcs.LGstat.ML
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基于机器学习的无人机多址接入预测部署

Machine Learning for Predictive Deployment of UAVs with Multiple Access

Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳));Princeton University(普林斯顿大学);Zhejiang University of Technology(浙江工业大学)

Linyan Lu, Zhaohui Yang, Mingzhe Chen, Zelin Zang, Mohammad Shikh-Bahaei

摘要:

研究了一种基于机器学习的无人机部署框架。在所考虑的模型中,无人机被部署为飞行基站(BS),从地面BS卸载繁重的业务。由于时变的流量分布,引入基于长短期记忆(LSTM)的预测算法来预测未来的蜂窝流量。为了预测用户服务分布,提出了一种基于高斯混合模型(GMM)的联合K-means和期望最大化(EM)算法--KEG算法,用于确定各无人机的服务区。基于预测的流量,最佳的无人机位置推导出和三个多址技术进行了比较,以最小化总发射功率。仿真结果表明,与不进行流量预测的传统方法相比,该方法可以降低24%的总功耗.此外,与频域多址接入(FDM)和时域多址接入(TDMA)相比,速率分离多址接入(RSMA)所需的发射功率较低。

英文摘要:

In this paper, a machine learning based deployment framework of unmanned aerial vehicles (UAVs) is studied. In the considered model, UAVs are deployed as flying base stations (BS) to offload heavy traffic from ground BSs. Due to time-varying traffic distribution, a long short-term memory (LSTM) based prediction algorithm is introduced to predict the future cellular traffic. To predict the user service distribution, a KEG algorithm, which is a joint K-means and expectation maximization (EM) algorithm based on Gaussian mixture model (GMM), is proposed for determining the service area of each UAV. Based on the predicted traffic, the optimal UAV positions are derived and three multi-access techniques are compared so as to minimize the total transmit power. Simulation results show that the proposed method can reduce up to 24\% of the total power consumption compared to the conventional method without traffic prediction. Besides, rate splitting multiple access (RSMA) has the lower required transmit power compared to frequency domain multiple access (FDMA) and time domain multiple access (TDMA).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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