Towards characterizing Bluetooth discovery in a vehicular context

Bronzi, Walter; Derrmann, Thierry; Castignani, German; Engel, Thomas

doi:10.1109/vnc.2016.7835935

Cited by 7 publications

(7 citation statements)

References 4 publications

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“…However, these wirelessly transmitted signals are subjected to delay, inaccuracy or misleading. These parameters are especially variable in the dynamic charging where the vehicle moves during the charging process [138]. That may affect the operation of the inductive dynamic charging, which is also affected by a fast change of the misalignment of the coils.…”

Section: A Primary-side Controlmentioning

confidence: 99%

Operation of Inductive Charging Systems Under Misalignment Conditions: A Review for Electric Vehicles

Ramezani

Triviño-Cabrera

et al. 2023

IEEE Trans. Transp. Electrific.

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Inductive power transfer (IPT) for Electric Vehicles (EVs) is an emerging technology that can transfer power wirelessly over certain distances, thus offering some remarkable characteristics in terms of flexibility, position and movability. The output power of an IPT system depends on the coupling factor of the magnetic couplers which can deviates from the nominal operating conditions due to occurrence of misalignment. Nevertheless, misalignment of the magnetic couplers in inductive charging is inevitable, and it usually results in the variation of the mutual inductance and output power of the system with corresponding decrease in the system overall efficiency. So far, the literature has reported various techniques for achieving designs with higher misalignment tolerance. The reported techniques can be mainly classified into three categories, as viewed from the following aspects: magnetic couplers layouts, compensation networks and control strategy. Each of these techniques has its pros and cons in terms of implementation cost, system layout, efficiency, power density and reliability depending on the application. With the increased investigation of more applications of IPT, new modified techniques of improving the misalignment tolerance in the IPT system are continuously being proposed based on permutations and combinations of the existing ones; thus causing some confusion and difficulties for researchers and system vendors to follow. This paper, therefore, aims to provide a comprehensive review of the existing methods for IPT systems that address the misalignment issue in EVs wireless charging. A review of the IPT system is presented and an investigation of the numerous factors affecting the output power and performances of the system when the coils are not aligned. In addition, the advantages and disadvantages of each technique on the IPT system's performance are analyzed in detail.

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Section: A Primary-side Controlmentioning

confidence: 99%

Operation of Inductive Charging Systems Under Misalignment Conditions: A Review for Electric Vehicles

Ramezani

Triviño-Cabrera

et al. 2023

IEEE Trans. Transp. Electrific.

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“…However, the same assessment and related PEP studies were not considered in the context of the MIMO LTE-DSRC systems. The PEP performance diversity study for STF codes of broadband OFDM systems has been discussed (Bronzi et al, 2016). They illustrated that by minimizing PEP output and using distinct space, time, and frequency, a system could achieve maximum order of diversity.…”

Section: Pairwise Error Probability (Pep)mentioning

confidence: 99%

Space-Time Frequency Block Codes in LTE-DSRC Hybrid Vehicular Networks

Aziz¹,

Mohamad²,

Mahmud³

et al. 2022

IJTech

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In vehicular communication systems, Dedicated Short Range Communication (DSRC) is said to provide fast communication and high security between vehicles. Simultaneously, Long-Term Evolution (LTE) is used due to its high bandwidth, low latency, and high spectrum efficiency. The DSRC and LTE hybrid model has gained much attention as it is feasible and simpler in design and deployment. In fact, multiple-input multiple-output (MIMO) systems have been widely used in modern wireless communication systems to enhance data throughput, reliability, and coverage. This paper proposes a MIMO LTE-DSRC hybrid system using space-time frequency block codes (STFBC). This paper focuses on the physical layer performance of the LTE-DSRC hybrid uplink structure. The DSRC Orthogonal Frequency Division Multiplexing (OFDM) transmitter and LTE Single Carrier Frequency Division Multiplexing (SCFDM) receiver are used for the uplink transmission. A study on bit error rate (BER), pairwise error probability (PEP), and channel-tointerference ratio (CIR) of the 2x2 MIMO LTE-DSRC system is conducted. The numerical results show that this proposed method improves the error rate performance with a gradual increase in signal-to-noise ratio (SNR) compared to the baseline systems.

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“…However, a limitation is represented by any weak signals covered by noise or by the application at high travel speeds and the distance between vehicles, which makes the system considered inadequate in complex scenarios. It can be adopted an approach based on Bluetooth Low Energy (BLE) [74] to overcome the limits of Wi-Fi, VLC, and control sensors. This wireless standard can be useful in PCW environments as it allows bidirectional communications with the lowest power consumption and with good reception values.…”

Section: Vehicle-to-everythingmentioning

confidence: 99%

An Overview of Vehicular Communications

2019

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The transport sector is commonly subordinate to several issues, such as traffic congestion and accidents. Despite this, in recent years, it is also evolving with regard to cooperation between vehicles. The fundamental objective of this trend is to increase road safety, attempting to anticipate the circumstances of potential danger. Vehicle-to-Vehicle (V2V), Vehicle-to-Infrastructure (V2I) and Vehicle-to-Everything (V2X) technologies strive to give communication models that can be employed by vehicles in different application contexts. The resulting infrastructure is an ad-hoc mesh network whose nodes are not only vehicles but also all mobile devices equipped with wireless modules. The interaction between the multiple connected entities consists of information exchange through the adoption of suitable communication protocols. The main aim of the review carried out in this paper is to examine and assess the most relevant systems, applications, and communication protocols that will distinguish the future road infrastructures used by vehicles. The results of the investigation reveal the real benefits that technological cooperation can involve in road safety.

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Towards characterizing Bluetooth discovery in a vehicular context

Cited by 7 publications

References 4 publications

Operation of Inductive Charging Systems Under Misalignment Conditions: A Review for Electric Vehicles

Operation of Inductive Charging Systems Under Misalignment Conditions: A Review for Electric Vehicles

Space-Time Frequency Block Codes in LTE-DSRC Hybrid Vehicular Networks

An Overview of Vehicular Communications

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