arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1912.03359cs.NIcs.LGstat.ML
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超可靠低延迟车载通信:一种主动学习方法

Ultra-Reliable and Low-Latency Vehicular Communication: An Active Learning Approach

University of Oulu(奥卢大学);Kyung Hee University(庆熙大学);Virginia Tech(弗吉尼亚理工学院暨州立大学)

Mohamed K. Abdel-Aziz, Sumudu Samarakoon, Mehdi Bennis, Walid Saad

摘要:

在这封信中,提出了一种用于车载通信网络的信息时代(AoI)感知传输功率和资源块(RB)分配技术。由于车辆网络的高度动态性质,获得关于网络动态的先验知识,即,为了分配资源,无线信道和干扰是具有挑战性的。因此,为了有效地分配功率和RB,所提出的方法允许网络通过在最小化车辆的AoI超过预定义阈值的概率和最大化关于网络动态的知识之间进行平衡来主动学习其动态。在这方面,使用高斯过程回归(GPR)方法,提出了一种在线分散策略,以主动学习网络动态,估计车辆未来的AoI,并主动分配资源。仿真结果表明,与几个基线相比,AoI违规概率有了显着改善,至少减少了50%。

英文摘要:

In this letter, an age of information (AoI)-aware transmission power and resource block (RB) allocation technique for vehicular communication networks is proposed. Due to the highly dynamic nature of vehicular networks, gaining a prior knowledge about the network dynamics, i.e., wireless channels and interference, in order to allocate resources, is challenging. Therefore, to effectively allocate power and RBs, the proposed approach allows the network to actively learn its dynamics by balancing a tradeoff between minimizing the probability that the vehicles' AoI exceeds a predefined threshold and maximizing the knowledge about the network dynamics. In this regard, using a Gaussian process regression (GPR) approach, an online decentralized strategy is proposed to actively learn the network dynamics, estimate the vehicles' future AoI, and proactively allocate resources. Simulation results show a significant improvement in terms of AoI violation probability, compared to several baselines, with a reduction of at least 50%.

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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