Stochastic modeling of IEEE 802.11p output process for efficient V2X large-scale interworking

F. Salem, Y. Elhillali, S. Niar
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引用次数: 2

Abstract

Vehicle-to-anything (V2X) is a promising communication technology to support operability in large-scale vehicular networks. The future deployment of V2X necessitates interworking between different access technologies, i.e., Dedicated Short-Range Communications (DSRC) and Cellular networks. However to achieve an efficient V2X interworking, we need to resolve the multi-hop issue, mainly originating from the V2X hybrid architecture. To resolve this issue and consequently to analyze the interconnected system, characterizing the output process of IEEE 802.11p-based DSRC protocol is of a fundamental importance. This paper proposes stochastic Regenerative Model to provide a complete description of IEEE 802.11p output process. The accuracy of the model is verified through extensive simulations. As a case study, the proposed model is compared with the Poisson model in the performance evaluation of V2X interworking. Numerical and simulation results verify the ability of the Regenerative Model to capture the deviations of the actual output process of IEEE 802.11p under different traffic intensity as compared to the Poisson model.
面向高效V2X大规模互联的IEEE 802.11p输出过程随机建模
车对物(V2X)是一种很有前途的通信技术,可支持大规模车辆网络的可操作性。V2X的未来部署需要不同接入技术之间的互通,即专用短距离通信(DSRC)和蜂窝网络。然而,为了实现高效的V2X互联,我们需要解决多跳问题,这主要源于V2X混合架构。为了解决这一问题,进而分析互连系统,表征基于IEEE 802.11p的DSRC协议的输出过程是至关重要的。为了完整地描述IEEE 802.11p的输出过程,本文提出了随机再生模型。通过大量的仿真验证了该模型的准确性。作为案例研究,将该模型与泊松模型在V2X互联性能评估中进行了比较。数值和仿真结果验证了再生模型与泊松模型相比,能够捕捉到不同流量强度下IEEE 802.11p实际输出过程的偏差。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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