V2I applications in highways: How RSU dimensioning can improve service delivery

Charalampopoulos, Georgios; Dagiuklas, Tasos; Chrysikos, Theofilos

doi:10.1109/ict.2016.7500438

Cited by 10 publications

(4 citation statements)

References 20 publications

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“…is the confluent hypergeometric function. By substituting (13) in (12) and with the help of [27, Eq. (9.111)], we obtain…”

Section: Packet Error Performance Analysismentioning

confidence: 99%

“…and ρ e is the correlation coefficient for the EC model. By using (16) along with (12) and after a variable transformation, we obtain…”

Section: Packet Error Performance Analysismentioning

confidence: 99%

“…If needed, the RSU can also act as a relay to exchange packets between two vehicles [3], [9].While the performance limits of single-link V2I communications have been well characterized [10], [11], only limited work has been done to investigate the performance of a multi-antenna RSU. In [12], the authors considered the omnidirectional antenna at RSU to investigate the performance of V2I links in a highway scenario. By varying vehicle density, it was shown that the location of RSU was of considerable importance in vehicular communications.…”

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confidence: 99%

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Performance Analysis of Cooperative V2V and V2I Communications Under Correlated Fading

Jameel

Javed

Ngo

2020

IEEE Trans. Intell. Transport. Syst.

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Cooperative vehicular networks will play a vital role in the coming years to implement various intelligent transportation related applications. Both vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications will be needed to reliably disseminate information in a vehicular network. In this regard, a roadside unit (RSU) equipped with multiple antennas can improve the network capacity. While the traditional approaches assume antennas to experience independent fading, we consider a more practical uplink scenario where antennas at the RSU experience correlated fading. In particular, we evaluate the packet error probability for two renowned antenna correlation models, i.e., constant correlation (CC) and exponential correlation (EC). We also consider intermediate cooperative vehicles for reliable communication between the source vehicle and the RSU. Here, we derive closed-form expressions for packet error probability which help quantify the performance variations due to fading parameter, correlation coefficients and the number of intermediate helper vehicles. To evaluate the optimal transmit power in this network scenario, we formulate a Stackelberg game, wherein, the source vehicle is treated as a buyer and the helper vehicles are the sellers. The optimal solutions for the asking price and the transmit power are devised which maximize the utility functions of helper vehicles and the source vehicle, respectively. We verify our mathematical derivations by extensive simulations in MATLAB. Index TermsAntenna correlation, Stackelberg game, Vehicle-to-infrastructure (V2I), Vehicle-to-vehicle (V2V). I. INTRODUCTIONUbiquitous vehicular connectivity is expected to be an essential paradigm shift for guaranteeing driver safety and preventing road accidents [1], [2]. However, with the rapid spread of information and communication technology, especially in the domain of consumer electronics, there is a need to improve different aspects of vehicular networks. Cooperative communication among vehicles is one of these aspects. Cooperative vehicular networking is a key enabler for intelligent transportation systems and smart cities. Many traffic management and passenger comfort applications can be implemented by means of efficient and reliable data exchange among vehicles [3]- [5]. Although single-hop communication is typically used for the periodic exchange of mobility information among neighbor vehicles, multi-hop communications can be used to propagate emergency notifications within a large geographical area. Moreover, the multi-hop communication approach is favored when line-of-sight does not exist between source and destination; providing a mechanism to combat the attenuation of wireless signals. To ensure widespread vehicular network connectivity, a roadside unit (RSU) is placed at various strategic locations along the road [6], [7]. An RSU typically comprises of multiple short-range antennas [8] to provide uninterrupted connectivity between vehicles in the transmission range, also termed as vehicle-to-infrastruc...

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“…is the confluent hypergeometric function. By substituting (13) in (12) and with the help of [27, Eq. (9.111)], we obtain…”

Section: Packet Error Performance Analysismentioning

confidence: 99%

“…and ρ e is the correlation coefficient for the EC model. By using (16) along with (12) and after a variable transformation, we obtain…”

Section: Packet Error Performance Analysismentioning

confidence: 99%

mentioning

confidence: 99%

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Performance Analysis of Cooperative V2V and V2I Communications Under Correlated Fading

Jameel

Javed

Ngo

2020

IEEE Trans. Intell. Transport. Syst.

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“…Communications in the Internet of Vehicle (IoV) is mostly enabled by the V2V (vehicle to vehicle) and V2I (vehicle to infrastructure) pattern. Because of the opportunistic and random feature of V2V, the V2I communication between vehicles and roadside units is more essential to guarantee the network performance 1 . As the roadside infrastructure, Roadside Units (RSUs) can provide vehicles with access to the internet or help to establish connections between vehicles.…”

Section: Introductionmentioning

confidence: 99%

A BUS‐aided RSU access scheme based on SDN and evolutionary game in the Internet of Vehicle

Jia

Chen

et al. 2019

Int J Communication

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Summary The Internet of Vehicle (IoV) is known as a kind of highly dynamic network, in which the vehicle needs to exchange information with the fixed Roadside Unit (RSU) or other moving vehicles frequently. In order to improve the performance of existing RSU access schemes, in this paper, we proposed a BUS‐aided RSU connection scheme based on the software‐defined networking (SDN) and evolutionary game theory, in which the costs during multiple‐user access and following RSU handoff are considered. At first, we constructed a SDN‐IoV architecture and showed the benefits by introducing SDN into IoV. After that, we modified the original OpenFlow protocol stack in order to apply it to the wireless vehicular networks. Next, to explore more accessing opportunities in moving cases, the BUS was further introduced as a mobile RSU. With these fixed and mobile RSUs, an evolutionary game is then envisioned to model the multiple‐user access process with the aim to maximize the rewards of all participants. To make our proposed protocol practical, we also illustrated the implementation procedure of our protocol on the OPNET platform and gave out the finite state machine (FSM) of major routines. Numerical results showed that our proposed scheme could outperform the schemes without BUS, SDN, and game theory enabled, in terms of RSU load ratio, throughput, and handoff times.

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Vehicular Grouping and Network Formation: Virtualization of Network Self-healing

Al-Hamid

Al-Anbuky

2018

Lecture Notes in Computer Science

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V2I applications in highways: How RSU dimensioning can improve service delivery

Cited by 10 publications

References 20 publications

Performance Analysis of Cooperative V2V and V2I Communications Under Correlated Fading

Performance Analysis of Cooperative V2V and V2I Communications Under Correlated Fading

A BUS‐aided RSU access scheme based on SDN and evolutionary game in the Internet of Vehicle

Vehicular Grouping and Network Formation: Virtualization of Network Self-healing

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