Vehicular Communication: Enhanced Networking Through Dynamic Spectrum Access

Pagadarai, Srikanth; Lessard, Bennett Andrew; Wyglinski, Alexander M.; Vuyyuru, Rama; Altintas, Onur

doi:10.1109/mvt.2013.2268659

Cited by 22 publications

(14 citation statements)

References 13 publications

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“…However, they focus on vehicle-to-vehicle communications only, which is not an efficient way for vehicular content delivery. Another field tests on the availability of TV-band spectrum holes are conducted near Interstate-90 by Pagadarai et al and published in [11]. Unfortunately, their outcomes are in a macroscopic view, which are not enough for designing a DSA method for real implementation.…”

Section: B Related Workmentioning

confidence: 99%

Providing Vehicular Infotainment Service Using VHF/UHF TV Bands via Spatial Spectrum Reuse

Chen

Liu

Zhou

et al. 2015

IEEE Trans. on Broadcast.

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In this paper, we identify the potential of the television bands to be used for providing vehicular infotainment service. Specifically, content delivery from the roadside unit to vehicular users is conducted by exploiting the spectrum holes, which is also referred to as spatial spectrum reuse. In this manner, the spectrum utilization efficiency is improved and the digital television service is not interfered. We first give a thorough description on such vehicular content delivery network and indicate the major design issues. After that, we respectively develop user and resource models tailored for our scenario by considering their characteristics and formulate the resource allocation as a system throughput maximization problem based on these models. For practical implementation, we devise a vehicular content delivery protocol incorporating a dynamic spectrum access algorithm and a maximal frame size design method, both of which aim at throughput and spectrum efficiency enhancement. Extensive simulations are conducted and the numerical results show the system performance is improved with our approaches.Index Terms-VHF/UHF television (TV) bands, spatial spectrum reuse, dynamic spectrum access (DSA), vehicular service, content delivery.

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Section: B Related Workmentioning

confidence: 99%

Providing Vehicular Infotainment Service Using VHF/UHF TV Bands via Spatial Spectrum Reuse

Chen

Liu

Zhou

et al. 2015

IEEE Trans. on Broadcast.

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“…The viability of VDSA is based on the successful classification of channel available [8], [9]. As an alternative to using Digital Television (DTV) band, Ghandour et al proposed the usage of the 5.8 GHz ISM band for secondary connected vehicle users in [10].…”

Section: Introductionmentioning

confidence: 99%

A Voting-Based Distributed Cooperative Spectrum Sensing Strategy for Connected Vehicles

Aygün

Wyglinski

2017

IEEE Trans. Veh. Technol.

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In this paper, we propose a novel distributed cooperative sensing algorithm for connected vehicles. The adaptive energy detection threshold, which is used to decide whether the channel is busy, is optimized in this work by using a computationally efficient numerical approach. The proposed optimization approach minimizes the probability of incorrect detection as a function of both the probability of false alarm and the probability of missed detection. By considering both probabilities when computing the probability of incorrect detection, to the best of the authors' knowledge the proposed approach is novel. During the energy detection process, large scale fading, multipath fading, Doppler effect, and transmission errors affecting the control messaging process are accounted in order to provide a practical solution for connected vehicles. Once the available channels have been detected, the vehicles share this information using broadcast control messages. Each vehicle evaluates the available channels by voting on the information received from one-hop neighbors, where the credibility of each neighbor is weighted during the voting process. An interdisciplinary approach referred to as entropy-based weighting is used for defining the neighbor as well as the vehicle's own credibility. The voting mechanism is switched between the proposed voting mechanism and the traditional voting approach obtained from the current-state-ofthe-art in order to maintain a balance between the computational cost/latency and robust spectrum sensing. Experimental results show that by using the proposed distributed cooperative spectrum sensing mechanism, spectrum detection error converges to zero.

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“…In [14], the authors examine the VDSA system by using queuing theory via multi server multi priority approaches and calculate transmission latency and the probability of all channels is busy over TV white space. Moreover, more researches over TV white spaces [15] have been intensively studied. [16] describes a geo-location database to determine TV channel availability by showing vacant UHF TV channels and the total available bandwidth at different locations.…”

Section: Introductionmentioning

confidence: 99%

Robust and continuous connectivity maintenance for vehicular dynamic spectrum access networks

Bozkaya

Canberk

2015

Ad Hoc Networks

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Vehicular Communication: Enhanced Networking Through Dynamic Spectrum Access

Cited by 22 publications

References 13 publications

Providing Vehicular Infotainment Service Using VHF/UHF TV Bands via Spatial Spectrum Reuse

Providing Vehicular Infotainment Service Using VHF/UHF TV Bands via Spatial Spectrum Reuse

A Voting-Based Distributed Cooperative Spectrum Sensing Strategy for Connected Vehicles

Robust and continuous connectivity maintenance for vehicular dynamic spectrum access networks

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