Vehicle to Vehicle Communication Using DS-CDMA Radar

Munshi, Ami; Unnikrishnan, Srija

doi:10.1016/j.procs.2015.04.249

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…If the voltage across the battery is between the minimum and maximum set voltages, the relay will be switched on-otherwise it will be off. From a VANET perspective [33,34], a mobile app operated via a Bluetooth module was also designed, which enabled us to obtain the results of the electric generation on the app for easy access to the data. Finally, the diode before the battery will allow the current to flow only towards it and will stop the current moving in the other direction.…”

Section: System Modelmentioning

confidence: 99%

Designing a Wind Energy Harvester for Connected Vehicles in Green Cities

et al. 2021

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Electric vehicles (EVs) have recently gained momentum as an integral part of the Internet of Vehicles (IoV) when authorities started expanding their low emission zones (LEZs) in an effort to build green cities with low carbon footprints. Energy is one of the key requirements of EVs, not only to support the smooth and sustainable operation of EVs, but also to ensure connectivity between the vehicle and the infrastructure in the critical times such as disaster recovery operation. In this context, renewable energy sources (such as wind energy) have an important role to play in the automobile sector towards designing energy-harvesting electric vehicles (EH-EV) to mitigate energy reliance on the national grid. In this article, a novel approach is presented to harness energy from a small-scale wind turbine due to vehicle mobility to support the communication primitives in electric vehicles which enable plenty of IoV use cases. The harvested power is then processed through a regulation circuitry to consequently achieve the desired power supply for the end load (i.e., battery or super capacitor). The suitable orientation for optimum conversion efficiency is proposed through ANSYS-based aerodynamics analysis. The voltage-induced by the DC generator is 35 V under the no-load condition while it is 25 V at a rated current of 6.9 A at full-load, yielding a supply of 100 W (on constant voltage) at a speed of 90 mph for nominal battery charging.

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Section: System Modelmentioning

confidence: 99%

Designing a Wind Energy Harvester for Connected Vehicles in Green Cities

et al. 2021

View full text Add to dashboard Cite

show abstract

“…If the voltage across the battery is between minimum and maximum set voltages, the relay will be switched on, otherwise it will be off. In VANET perspective [31,32], a mobile app operated via a Bluetooth module is also designed which enable us to get the results of the electric generation on the app for easy access to the data. Finally, the diode before the battery will allow current to flow only towards it and will stop current to move in the other direction.…”

Section: System Modelmentioning

confidence: 99%

Designing Wind Energy Harvester for Connected Vehicles in Green Cities

Khan¹,

Sherazi²,

Ali³

et al. 2021

Preprint

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The recent advancements in the field of communication have led data sharing to become an integral part of today's smart cities with the evolution of concepts such as the internet of vehicles (IoV) paradigm. As a part of IoV, Electric Vehicles (EVs) have recently gained momentum as authorities have started expanding their Low Emission Zones (LEZ) in an effort to build green cities with low carbon footprints. Energy is one of the key requirements of EVs not only to support the smooth and sustainable operation of EV itself but to also ensure connectivity between the vehicles and infrastructure with controlling devices like sensors and actuators installed within an EV. In this context, renewable energy sources (such as wind energy) dramatically play their parts in the automobile sector towards designing the energy harvesting electric vehicles (EH-EV) to pare the energy reliance on the national grid. In this article, a novel approach is presented to achieve electric generation due to vehicle mobility to support the communication primitives in electric vehicles which enables plenty of IoV use cases in the presence of surplus energy at hand. A small-scale wind turbine is designed to harness wind power for converting it into mechanical power. This power is then fed to the onboard DC generator to produce electrical energy. Furthermore, the acquired power is processed through a regulation circuitry to consequently achieve the desired power supply for the end load, i.e. the batteries installed. The suitable orientation for efficient power generation is proposed on ANSYS-based aerodynamics analysis. The voltages induced by DC generator at No-Load condition are 35V while at Full-Load 25V are generated at rated current of 6.9A, along with the generation of power at around 100W (at constant voltage) at the rated speed of 90 mph for nominal battery charging. Moreover, the acquired data can be monitored via an android application interface by using a Bluetooth module.

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“…Moreover, a RadCom system must be able to operate over a multiuser V2X communication scenario; hence, the need for multiple-access techniques imposes itself. The use of code division multiple access (CDMA) with direct-sequence spread spectrum (DS-CDMA) was proposed in 2015 [13] and earlier in 2006 in [14]. This technique proved to have great range and velocity estimation while allowing for multiple users to share the same timefrequency resource using unique orthogonal codes.…”

Section: Introductionmentioning

confidence: 99%

UFMC Waveform and Multiple-Access Techniques for 5G RadCom

et al. 2021

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In recent years, multiple functions traditionally realized by hardware components have been replaced by digital-signal processing, making radar and wireless communication technologies more similar. A joint radar and communication system, referred to as a RadCom system, was proposed to overcome the drawbacks of the conventional existent radar techniques while using the same system for intervehicular communication. Consequently, this system enhances used spectral resources. Conventional orthogonal frequency division multiplexing (OFDM) was proposed as a RadCom waveform. However, due to OFDM’s multiple shortcomings, we propose universal filtered multicarrier (UFMC), a new 5G waveform candidate, as a RadCom waveform that offers a good trade-off between performance and complexity. In addition to that, we propose multicarrier code division multiple access (MC-CDMA) as a multiple-access (MA) technique that can offer great performance in terms of multiuser detection and power efficiency. Moreover, we study how UFMC filter length and MC-CDMA spreading sequences can impact overall performance on both radar and communication separately under a multipath channel. Analysis of the bit error rate (BER) of the UFMC waveform was performed in order to confirm the experiment results.

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Vehicle to Vehicle Communication Using DS-CDMA Radar

Cited by 7 publications

References 7 publications

Designing a Wind Energy Harvester for Connected Vehicles in Green Cities

Designing a Wind Energy Harvester for Connected Vehicles in Green Cities

Designing Wind Energy Harvester for Connected Vehicles in Green Cities

UFMC Waveform and Multiple-Access Techniques for 5G RadCom

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