Forward Collision Vehicular Radar With IEEE 802.11: Feasibility Demonstration Through Measurements

Daniels, Robert C.; Yeh, Enoch R.; Heath, Robert W.

doi:10.1109/tvt.2017.2758581

Cited by 74 publications

(58 citation statements)

References 43 publications

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“…Dual-functional radarcommunication in mmWave systems is a new and promising research area. Recent treatises [92]- [94] propose to invoke the radar function to support V2X communications based on the IEEE 802.11ad WLAN protocol, which operates in the 60GHz band. As the WLAN standard is typically indoor based and employs small-scale antenna arrays, it can only support short-range sensing at the order of tens of meters.…”

Section: Limitations Of the Existing Workmentioning

confidence: 99%

“…While the proposed approaches in this paper focus on mmWave cellular systems, it can be extended to V2X applications with the consideration of specific channel models for vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) scenarios. Again, such schemes call for the design of novel beamforming/signaling approaches [92], [93], [116].…”

Section: ) Dfrc For V2xmentioning

confidence: 99%

See 1 more Smart Citation

Joint Radar and Communication Design: Applications, State-of-the-Art, and the Road Ahead

Liu

Masouros

Petropulu

et al. 2020

IEEE Trans. Commun.

1,142

602

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For the sake of enhancing the exploitation of the permanently allocated, but potentially under-utilized spectral resources, sharing the frequency bands between radar and communication systems has attracted substantial attention. More explicitly, there is increasing demand for sharing both the frequency band and the hardware platform between these two functionalities, but naturally, its success critically hinges on highquality joint sensing and communications. In this paper, we firstly overview the application scenarios and the research progress in the area of communication and radar spectrum sharing, with particular emphasis on: 1) Radar-communication coexistence; 2) Dual-functional radar-communication (DFRC) systems. In the remainder of the paper, we propose a novel transceiver architecture and frame structure for a DFRC base station (BS) operating in the millimeter wave (mmWave) band, using the hybrid analog-digital (HAD) beamforming technique. We assume that the BS is serving a multi-antenna aided user equipment (UE) operating in a mmWave channel, which in the meantime actively detects multiple targets. Note that part of the targets also play the role of scatterers for the communication signal. Given this framework, we then propose a novel scheme for joint target search and communication channel estimation relying on the omni-directional pilot signals generated by the HAD structure. Given a fully-digital communication precoder and a desired radar transmit beampattern, we propose to design the analog and digital precoders under non-convex constant-modulus (CM) and power constraints, such that the BS can formulate narrow beams towards all the targets, while pre-equalizing the impact of the communication channel. Furthermore, we design an HAD receiver that can simultaneously process signals from the UE and echo waves from the targets. By tracking the angular variation of the targets, we show that it is possible to recover the target echoes and mitigate the potential interference imposed on the UE signals by invoking the successive interference cancellation (SIC) technique, even when the radar and communication signals share the equivalent signal-to-noise ratio (SNR). The feasibility and the efficiency of the proposed approaches in realizing DFRC are verified via numerical simulations. Finally, our discussions are summarized by overviewing the open problems in the research field of CRSS.

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Section: Limitations Of the Existing Workmentioning

confidence: 99%

Section: ) Dfrc For V2xmentioning

confidence: 99%

Joint Radar and Communication Design: Applications, State-of-the-Art, and the Road Ahead

Liu

Masouros

Petropulu

et al. 2020

IEEE Trans. Commun.

1,142

602

View full text Add to dashboard Cite

show abstract

“…where · is a Euclidean norm. It is shown that (14) has the same structure as (12). Last, the origins of all paths {(x p , y p )} can be computed using the parameters {z * , ω * } as illustrated in (E1).…”

Section: )mentioning

confidence: 99%

Hidden Vehicle Sensing via Asynchronous V2V Transmission: A Multi-Path-Geometry Approach

Han

Chae

et al. 2019

IEEE Access

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Accurate vehicular sensing is a basic and important operation in autonomous driving. Unfortunately, the existing techniques have their own limitations. For instance, the communication-based approach (e.g., transmission of GPS information) has high latency and low reliability while the reflection-based approach (e.g., RADAR) is incapable of detecting hidden vehicles (HVs) without line-of-sight. This is arguably the reason behind some recent fatal accidents involving autonomous vehicles. To address this issue, this paper presents a novel HV-sensing technology that exploits multi-path transmission from a HV to a sensing vehicle (SV). The powerful technology enables the SV to detect multiple HV-state parameters including position, orientation of driving direction, and size. Its implementation does not even require transmitterreceiver synchronization like conventional mobile positioning techniques. Our design approach leverages estimated information on multi-path [namely their angles-of-arrival (AoA), angles-of-departure (AoD), and time-of-arrival (ToA)] and their geometric relations. As a result, a complex system of equations or optimization problems, where the desired HV-state parameters are variables, can be formulated for different channel-noise conditions. The development of intelligent solution methods ranging from leastsquare estimator to disk/box minimization yields a set of practical HV-sensing techniques. We study their feasibility conditions in terms of the required number of paths. Furthermore, practical solutions, including sequential path combining and random directional beamforming, are proposed to enable HVsensing given insufficient paths. Last, realistic simulation of driving in both highway and rural scenarios demonstrates the effectiveness of the proposed techniques. In summary, the proposed technique will enhance the capabilities of existing vehicular sensing technologies (e.g., RADAR and LIDAR) by enabling HV-sensing.

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“…VANET correspondences are grouped into V2I (Vehicle to Framework), Hybrid (V2I and V2V) and V2V (Vehicle to Vehicle). V2I deals with information exchange amid road side units (RSU) and automobiles (Daniels et al, 2018). A V2I framework is being modelled in (Punia and Kumar, 2018) and the effect of mobility on QoS parameters is analysed.…”

Section: Literature Review On Vanetsmentioning

confidence: 99%

Experimental Characterization of Routing Protocols in Urban Vehicular Communication

Punia

Kumar

2019

Transport and Telecommunication Journal

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Vehicular communication is a cynosure in automotive industry these days. V2V communication is one of the types of vehicular communication which render lane change warning, emergency vehicle alert, intersection alert, congestion alert, payment at tolls etc. A simulation research on the utilization of vehicle to vehicle connectivity via different routing protocols in VANET, contemplating the instance of a city situation has been introduced in our paper in order to resolve the issue of traffic routing. A routing algorithm is proposed which firstly selects optimal path via carry and forward approach and then transmits information on that path and the proposed algorithm is then compared with contemporary routing protocols based on different QoS parameters like throughput, packet delivery ratio, delay which are measured using NETSIM simulator to evaluate the behaviour of dissimilar routing protocols. The proposed algorithm outperforms most of the simulation cases.

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Forward Collision Vehicular Radar With IEEE 802.11: Feasibility Demonstration Through Measurements

Cited by 74 publications

References 43 publications

Joint Radar and Communication Design: Applications, State-of-the-Art, and the Road Ahead

Joint Radar and Communication Design: Applications, State-of-the-Art, and the Road Ahead

Hidden Vehicle Sensing via Asynchronous V2V Transmission: A Multi-Path-Geometry Approach

Experimental Characterization of Routing Protocols in Urban Vehicular Communication

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