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arXiv 2307.07201cs.NIeess.SP
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LTE-V2V中两种基准资源分配算法的分析研究

Analytical Investigation of Two Benchmark Resource Allocation Algorithms for LTE-V2V

A. Bazzi, A. Zanella, G. Cecchini, B. M. Masini

AI总结:

本文针对LTE-V2V高速公路场景,分析两种可作为PRP最小与最大性能边界的基准资源分配算法,并通过模型与真实交通轨迹验证其参考价值。

摘要:

短距离无线技术将使车辆能够通信并协调其行动,从而提高人们的安全性和交通效率。多年来,IEEE 802.11p(及相关标准)一直是唯一实用的解决方案,而在2016年,长期演进(LTE)Release 14引入了一个新选择,其中包含支持直接车对车(V2V)通信的新特性。得益于改进的PHY层以及在MAC层使用正交资源,LTE-V2V有望比IEEE 802.11p更高效地利用信道。在LTE-V2V中,资源分配算法发挥着关键作用,人们正投入越来越多的努力设计新方案以优化空间复用。在此背景下,一个仍很少被研究的重要方面,是识别能够实现以下目标的参考:1)了解资源分配算法所处的空间;2)验证新提案的性能。在本工作中,我们聚焦高速公路场景,并确定两种算法,分别作为分组接收概率(PRP)方面的最小和最大参考。PRP被推导为描述场景和设置的各种参数的函数,这些参数从应用层一直到物理层。在简化的Poisson点过程场景以及真实交通轨迹中获得的结果表明,不同算法下PRP差异显著,并且当前解决方案仍有改进空间。

英文摘要:

Short-range wireless technologies will enable vehicles to communicate and coordinate their actions, thus improving people's safety and traffic efficiency. Whereas IEEE 802.11p (and related standards) had been the only practical solution for years, in 2016 a new option was introduced with Release 14 of long term evolution (LTE), which includes new features to enable direct vehicle-to-vehicle (V2V) communications. LTE-V2V promises a more efficient use of the channel compared to IEEE 802.11p thanks to an improved PHY layer and the use of orthogonal resources at the MAC layer. In LTE-V2V, a key role is played by the resource allocation algorithm and increasing efforts are being made to design new solutions to optimize the spatial reuse.In this context, an important aspect still little studied, is therefore that of identifying references that allow: 1) to have a perception of the space in which the resource allocation algorithms move; and 2) to verify the performance of new proposals. In this work, we focus on a highway scenario and identify two algorithms to be used as a minimum and maximum reference in terms of the packet reception probability (PRP). The PRP is derived as a function of various parameters that describe the scenario and settings, from the application to the physical layer. Results, obtained both in a simplified Poisson point process scenario and with realistic traffic traces, show that the PRP varies considerably with different algorithms and that there is room for the improvement of current solutions.

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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