Performance analysis of cooperative communications at road intersections using stochastic geometry tools

被引：8

作者：

Belmekki, Baha Eddine Youcef ^{[1
]}

Hamza, Abdelkrim ^{[2
]}

Escrig, Benoit ^{[1
]}

机构：

[1] Univ Toulouse, IRIT, INP, ENSEEIHT Toulouse, BP 7122, F-31071 Toulouse 7, France

[2] USTHB, LISIC Lab, Elect & Comp Fac, Algiers, Algeria

来源：

DIGITAL SIGNAL PROCESSING | 2021年 / 116卷

关键词：

Cooperative communications; Interference; Outage probability; Stochastic geometry; Vehicular safety communications; Intersections; SPATIAL INTERFERENCE CORRELATION; NETWORKS; OUTAGE;

D O I：

10.1016/j.dsp.2021.103112

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Vehicular safety communications (VSCs) provide relevant solutions to avoid congestion and road accidents, more particularly at road intersections since these areas are more prone to accidents. In this context, one of the main impairments that can affect the performance of VSCs is interference. In this paper, we study the performance of cooperative transmissions at intersections in presence of interference for VSCs. We use tools from stochastic geometry, and model interferer vehicles locations as a Poisson point process. First, we calculate the outage probability for a direct transmission when the receiving nodes can be on the road (as vehicles), or outside the road (as infrastructures). Then, we analyze the outage probability performance of a cooperative transmission scheme. The analysis takes into account two dimensions: the decoding strategy at the receiving nodes, and the vehicles mobility. We determine the optimal relay position under different traffic densities and for different vehicles mobility models. We also show that the outage probability does not improve after the number of infrastructure relays reach a threshold value. Finally, we show that the outage probability performance of VSCs is higher at intersections than on highways. We validate our analytical results by Monte-Carlo simulations. (C) 2021 Elsevier Inc. All rights reserved.

引用

页数：20

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Belmekki, Baha Eddine Youcef
Hamza, Abdelkrim
Escrig, Benoit
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