Autonomous Relay for Millimeter-Wave Wireless Communications

Kong, Linghe; Ye, Linsheng; Wu, Fan; Tao, Meixia; Chen, Guihai; Vasilakos, Athanasios V.

doi:10.1109/jsac.2017.2720518

Cited by 80 publications

(52 citation statements)

References 26 publications

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“…In the process of establishing and updating the route based on geographical location, the nodes were strictly limited to obtain the geographic location information of nodes that were not related to them, but the wiretap nodes were unable to use the channel state of the overall route for information restoration so that the safety of information transmission could be ensured. The route information stored from node A to node G was reduced in turn, and the information that the back-end node had nothing to do with the current node that was reduced, so that it was able to interfere with the illegal data during the information transmission and improve the transmission security of information at the physical layer [16][17][18].…”

Section: Architecture Designmentioning

confidence: 99%

“…wiretap nodes were unable to use the channel state of the overall route for information restoration so that the safety of information transmission could be ensured. The route information stored from node A to node G was reduced in turn, and the information that the back-end node had nothing to do with the current node that was reduced, so that it was able to interfere with the illegal data during the information transmission and improve the transmission security of information at the physical layer [16][17][18]. The information transmission process in VANET was divided into three stages: sending, relay routing, and receiving.…”

Section: Architecture Designmentioning

confidence: 99%

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Autonomous Detection for Traffic Flow Parameters of a Vehicle-Mounted Sensing Device Based on Symmetrical Difference

Huang¹,

Ye²

2020

Symmetry

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Based on the research and analysis of traffic detectors, it is found that the existing vehicle detection equipment is generally vulnerable to environmental interference and the detection effect cannot meet the current traffic demand. Therefore, an automatic detection method of traffic flow parameters based on symmetrical difference was put forward. This method collects the traffic flow parameters through wireless sensor nodes. Since the safety transmission protocol of VANET (Vehicular Ad Hoc Networks) can maximize the safety channel capacity, it transmits the traffic flow parameters to the data acquisition and control equipment of the upper computer through the cross layer pre-balanced safety transmission protocol of VANET in the wireless communication unit. The data acquisition and control equipment of the upper computer uses the traffic flow detection method based on the symmetrical difference to obtain the details of the moving objects in the traffic flow so as to realize the independent detection of the traffic flow parameters of the vehicle-borne sensor equipment. Experimental results show that the designed method has anti-interference abilities for the noise and light changes. Meanwhile, this method can completely extract moving objects from the traffic flow and can improve the detection effect of the moving objects in the traffic flow. Thus, the effectiveness of the proposed method can be fully verified.

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Section: Architecture Designmentioning

confidence: 99%

Section: Architecture Designmentioning

confidence: 99%

Autonomous Detection for Traffic Flow Parameters of a Vehicle-Mounted Sensing Device Based on Symmetrical Difference

Huang¹,

Ye²

2020

Symmetry

View full text Add to dashboard Cite

show abstract

“…Besides, the small wavelength of mmwave signals has inspired multiple-input multiple-output (MIMO) techniques. And also more array elements can be deployed in a physically limited space [6,7] to provide increase beamforming gain and spectral efficiency [1,[8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Development of Frequency Modulated Array Antennas for Millimeter-Wave Communications

Nusenu

2019

Wireless Communications and Mobile Computing

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With the massive growth of wireless data in mobile broadband communications, millimeter-wave (mm-wave) communication is an alternative enabling technique for fifth generation (5G) wireless communication systems. More importantly, mm-wave offers large frequency spectrum bands ranging from 30GHz to 300GHz that can be utilized to provide very high capacity (i.e., multigigabits per-second data rates). Moreover, because of the small wavelength at mm-wave frequencies, we can exploit large antenna elements in a small physical area, meaning beamforming schemes are feasible. Nevertheless, high directional antennas should be used due to overcoming the severe path loss and absorption in mm-wave frequencies. Further, the antennas should be steerable in angle and range directions to support point-to-point (multipoint) communications. So far, mm-wave communication has utilized phased-array antennas arrangement which is solely angle dependent. This review paper presents recent array technology, namely, frequency modulated frequency diverse array (FDA) for mm-wave communication applications with an emphasis on beamforming. In FDA, small frequency increment is added across the elements. In doing so, an array beam is generated which is angle-range-time dependent without the need of phase shifters. This feature has several promising potentials in mm-wave communications. In this review, the object is to bring to the fore this advance FDA technology to mm-wave communications community to call for more investigations. We review FDA research progress up to date and highlight the potential applications in mm-wave communications.

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“…Hierarchical beam search and codebook design procedure is proposed to improve beamforming training performance and adaptive cruising is suggested to mitigate blockage but no detailed algorithms are provided. In [6], UAVs are proposed to act as relays using mmWave communications to leverage effect of blockage. To enable accurate positioning that takes into account real channel gains, the authors proposed that the UAV samples the link qualities of mmWave beams while moving.…”

Section: Introductionmentioning

confidence: 99%

Trajectory Optimization for Cooperative Dual-Band UAV Swarms

Ghazzai

Ghorbel

Kassler

et al. 2018

2018 IEEE Global Communications Conference (GLOBECOM)

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Unmanned aerial vehicles (UAVs) have gained a lot of popularity in diverse wireless communication fields. They can act as high-altitude flying relays to support communications between ground nodes due to their ability to provide line-of-sight links. With the flourishing Internet of Things, several types of new applications are emerging. In this paper, we focus on bandwidth hungry and delay-tolerant applications where multiple pairs of transceivers require the support of UAVs to complete their transmissions. To do so, the UAVs have the possibility to employ two different bands namely the typical microwave and the highrate millimeter wave bands. In this paper, we develop a generic framework to assign UAVs to supported transceivers and optimize their trajectories such that a weighted function of the total service time is minimized. Taking into account both the communication time needed to relay the message and the flying time of the UAVs, a mixed non-linear programming problem aiming at finding the stops at which the UAVs hover to forward the data to the receivers is formulated. An iterative approach is then developed to solve the problem. First, a mixed linear programming problem is optimally solved to determine the path of each available UAV. Then, a hierarchical iterative search is executed to enhance the UAV stops' locations and reduce the service time. The behavior of the UAVs and the benefits of the proposed framework are showcased for selected scenarios.Index Terms-3D positioning and path planning, cooperative networks, mmWave communications, unmanned aerial vehicles.

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Autonomous Relay for Millimeter-Wave Wireless Communications

Cited by 80 publications

References 26 publications

Autonomous Detection for Traffic Flow Parameters of a Vehicle-Mounted Sensing Device Based on Symmetrical Difference

Autonomous Detection for Traffic Flow Parameters of a Vehicle-Mounted Sensing Device Based on Symmetrical Difference

Development of Frequency Modulated Array Antennas for Millimeter-Wave Communications

Trajectory Optimization for Cooperative Dual-Band UAV Swarms

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