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arXiv 2212.06396cs.NI
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车联网的高效速率分割多址接入:联邦边缘学习和延迟最小化

Efficient Rate-Splitting Multiple Access for the Internet of Vehicles: Federated Edge Learning and Latency Minimization

Shengyu Zhang, Shiyao Zhang, Weijie Yuan, Yonghui Li, Lajos Hanzo

摘要:

速率分离多址(RSMA)最近在多天线辅助的无线下行链路中得到青睐,因为其益处在于放松发射机处的信道状态信息(CSIT)的准确性,同时实现高频谱效率并提供安全保证。这些好处是特别重要的高速车辆排,因为他们的高多普勒影响的CSIT的估计精度。为了应对这一挑战,我们提出了一种基于RSMA的车联网(IoV)解决方案,该解决方案在下行链路中联合考虑了队列控制和FEEL边缘学习(FEEL)。具体地,所提出的框架被设计用于在IoV排内发送单播控制消息,以及用于隐私保护FEEL辅助的下行链路非正交单播和多播(NOUM)。鉴于这个复杂的框架,多目标优化问题,制定最小化的FEEL下行链路的延迟和车队内的车辆的偏差。为了有效地解决这个问题,块坐标下降(BCD)框架的主要多目标问题解耦成两个子问题。然后,为解决这些非凸子问题,连续凸逼近(SCA)和模型预测控制(MPC)方法被开发用于解决基于FEEL的下行链路问题和队列控制问题,分别。我们的仿真结果表明,所提出的基于RSMA的车联网系统优于传统的系统。

英文摘要:

Rate-Splitting Multiple Access (RSMA) has recently found favour in the multi-antenna-aided wireless downlink, as a benefit of relaxing the accuracy of Channel State Information at the Transmitter (CSIT), while in achieving high spectral efficiency and providing security guarantees. These benefits are particularly important in high-velocity vehicular platoons since their high Doppler affects the estimation accuracy of the CSIT. To tackle this challenge, we propose an RSMA-based Internet of Vehicles (IoV) solution that jointly considers platoon control and FEderated Edge Learning (FEEL) in the downlink. Specifically, the proposed framework is designed for transmitting the unicast control messages within the IoV platoon, as well as for privacy-preserving FEEL-aided downlink Non-Orthogonal Unicasting and Multicasting (NOUM). Given this sophisticated framework, a multi-objective optimization problem is formulated to minimize both the latency of the FEEL downlink and the deviation of the vehicles within the platoon. To efficiently solve this problem, a Block Coordinate Descent (BCD) framework is developed for decoupling the main multi-objective problem into two sub-problems. Then, for solving these non-convex sub-problems, a Successive Convex Approximation (SCA) and Model Predictive Control (MPC) method is developed for solving the FEEL-based downlink problem and platoon control problem, respectively. Our simulation results show that the proposed RSMA-based IoV system outperforms the conventional systems.

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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