PHY Abstraction Techniques for V2X Enabling Technologies: Modeling and Analysis

Anwar, Waqar; Dev, Sourav; Kumar, Atul; Franchi, Norman; Fettweis, Gerhard

doi:10.1109/tvt.2021.3053425

Cited by 25 publications

(32 citation statements)

References 25 publications

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“…However, the prediction accuracy mainly depends on the channel profile and used MCS, as a result, MCS and channel specific optimization is required. Later in [11], another effective SINR mapping algorithm named enhanced exponential effective SINR mapping (eEESM) is proposed which outperforms existing state-of-the-art (i.e., EESM and RBIR) algorithms. In this later study, authors abstract the performance of different vehicle-to-everything (V2X) technologies and compare their performance in an Urban line-of-sight (LOS) V2X channel model.…”

Section: A Related Workmentioning

confidence: 99%

“…PER lookup tables generated under the AWGN assumption to estimate performance under different fading conditions. According to [11], the newly proposed eEESM mapping technique outperforms EESM and RBIR and therefore will be used in this paper. It is derived by upper bounding the SER by using a tighter upper bound on error function, given by Q…”

Section: Physical Layer Abstraction For Multicarrier Techniquesmentioning

confidence: 99%

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Physical Layer Performance Modeling of Modern Multicarrier Modulation Techniques

Anwar

Kumar

Franchi³

et al. 2022

IEEE Trans. Commun.

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The fifth-generation (5G) and beyond communications are facing the challenge to meet the diverse requirements of modern use cases. Multicarrier modulation techniques are the key component of physical layer (PHY) design, which has the potential to improve the efficiency and reliability of current communications and hence to address the challenge. In stateof-the-art wireless technologies (i.e., NR and IEEE 802.11ax) orthogonal frequency division multiplexing (OFDM) is employed at PHY, although it has many disadvantages, i.e., peak-toaverage power ratio (PAPR), out-of-band emission (OOBE), and sensitivity to carrier frequency offset (CFO). To overcome OFDM drawbacks several multicarrier modulation techniques are being considered, such as discrete Fourier transform-spread-OFDM (DFT-s-OFDM), generalized frequency division multiplexing (GFDM), and orthogonal time frequency space (OTFS). In this paper, we develop the physical layer abstraction (PLA) of these multicarrier techniques to evaluate and compare their performance in various use cases and scenarios. The PLA is commonly used in system-level simulators to avoid timeconsuming PHY simulations. The validation results show that performance can be accurately estimated through PLA at least thousands times faster. Besides, the developed PLA is utilized to compare and evaluate the performance of multicarrier techniques in different fading conditions.

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Section: A Related Workmentioning

confidence: 99%

Section: Physical Layer Abstraction For Multicarrier Techniquesmentioning

confidence: 99%

Physical Layer Performance Modeling of Modern Multicarrier Modulation Techniques

Anwar

Kumar

Franchi³

et al. 2022

IEEE Trans. Commun.

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“…However, the latter ones poorly capture physical layer phenomena, by mainly relying on simple physical layer abstractions (PLAs) to ensure bounded computation latency and complexity. More accurate PLAs are needed, as early provided in [188] for LTE-V2X and, more recently, for 5G-V2X [189]. Proven the viability and accuracy of such approaches, simulation studies should be overhauled to include PLAs.…”

Section: ) Channel Modelingmentioning

confidence: 99%

On the Design of Sidelink for Cellular V2X: A Literature Review and Outlook for Future

et al. 2021

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Connected and fully automated vehicles are expected to revolutionize our mobility in the near future on a global scale, by significantly improving road safety, traffic efficiency, and traveling experience. Enhanced vehicular applications, such as cooperative sensing and maneuvering or vehicle platooning, heavily rely on direct connectivity among vehicles, which is enabled by sidelink communications. In order to set the ground for the core contribution of this paper, we first analyze the main streams of the cellular-vehicle-to-everything (C-V2X) technology evolution within the Third Generation Partnership Project (3GPP), with focus on the sidelink air interface. Then, we provide a comprehensive survey of the related literature, which is classified and critically dissected, considering both the Long-Term Evolutionbased solutions and the 5G New Radio-based latest advancements that promise substantial improvements in terms of latency and reliability. The wide literature review is used as a basis to finally identify further challenges and perspectives, which may shape the C-V2X sidelink developments in the next-generation vehicles beyond 5G.INDEX TERMS 5G, Cellular-vehicle-to-everything, literature review, new radio, sidelink.

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“…Recently, with the rapid advances of V2X communications, the abstraction of PHY layer for V2X technologies has attracted renovated attention [7]- [9]. In this context, the channel normally varies quickly enough that the small-scale fading observed by different transmissions in the time domain can be assumed as uncorrelated; additionally, transmissions are in broadcast, leading to a high number of correct receptions to be evaluated, which increase with the square of the density of the nodes.…”

Section: Introductionmentioning

confidence: 99%

“…In [8], [9], a more accurate modeling of the propagation is proposed, where the SINR is calculated on a per-subcarrier basis and an effective SINR is then derived through a parameter that needs optimization. In this case, a first drawback is that the mentioned parameter needs optimization for each adopted modulation.…”

Section: Introductionmentioning

confidence: 99%

A Physical Layer Model for the Performance Evaluation of V2X Communication

Bartoletti¹,

Wu²,

Martínez³

et al. 2022

Preprint

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Recent advancements in V2X communications have greatly increased the flexibility of the physical and MAC layers. The performance evaluation of V2X communication systems should take such flexibility into account through a cross-layer approach, which often leads to complex evaluation processes. Indeed, many performance evaluations presented in the literature rely on simple models to abstract the physical layer of the supported technologies. However, such models are usually not general, i.e., their applications are limited to specific scenarios or technologies, thus failing to reflect the flexibility of current V2X communications. Alternative solutions require computationally intensive simulations at the link level or non-trivial parameter tuning. The goal of this paper is to develop a new approach for modeling V2X communications at the physical layer. The approach is general for different technologies and has been validated through experimental data and system simulations with both IEEE 802.11p and sidelink LTE-V2X technologies.

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PHY Abstraction Techniques for V2X Enabling Technologies: Modeling and Analysis

Cited by 25 publications

References 25 publications

Physical Layer Performance Modeling of Modern Multicarrier Modulation Techniques

Physical Layer Performance Modeling of Modern Multicarrier Modulation Techniques

On the Design of Sidelink for Cellular V2X: A Literature Review and Outlook for Future

A Physical Layer Model for the Performance Evaluation of V2X Communication

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