C-V2X Centralized Resource Allocation with Spectrum Re-Partitioning in Highway Scenario

Sabeeh, Saif; Wesołowski, Krzysztof; Sroka, Paweł

doi:10.3390/electronics11020279

Cited by 13 publications

(9 citation statements)

References 24 publications

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“…Each VUE automatically selects radio resources using the allocation procedure of SB-SPS. The reselection counter is randomly selected to be between 5 and 15 in the SB-SPS [ 27 , 28 , 29 , 30 ]. And the self-interference cancellation coefficient is set as −110 dB to effectively eliminate interference between its own transmission and reception.…”

Section: Performance Evaluation and Discussionmentioning

confidence: 99%

A Hybrid Power-Rate Management Strategy in Distributed Congestion Control for 5G-NR-V2X Sidelink Communications

Tian

Islam

et al. 2023

Sensors

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The accelerated growth of 5G technology has facilitated substantial progress in the realm of vehicle-to-everything (V2X) communications. Consequently, achieving optimal network performance and addressing congestion-related challenges have become paramount. This research proposes a unique hybrid power and rate control management strategy for distributed congestion control (HPR-DCC) focusing on 5G-NR-V2X sidelink communications. The primary objective of this strategy is to enhance network performance while simultaneously preventing congestion. By implementing the HPR-DCC strategy, a more fine-grained and adaptive control over the transmit power and transmission rate can be achieved. This enables efficient control by dynamically adjusting transmission parameters based on the network conditions. This study outlines the system model and methodology used to develop the HPR-DCC algorithm and investigates its characteristics of stability and convergence. Simulation results indicate that the proposed method effectively controls the maximum CBR value at 64% during high congestion scenarios, which leads to a 6% performance improvement over the conventional DCC approach. Furthermore, this approach enhances the signal reception range by 20 m, while maintaining the 90% packet reception ratio (PRR). The proposed HPR-DCC contributes to optimizing the quality and reliability of 5G-NR-V2X sidelink communication and holds great promise for advancing V2X applications in intelligent transportation systems.

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Section: Performance Evaluation and Discussionmentioning

confidence: 99%

A Hybrid Power-Rate Management Strategy in Distributed Congestion Control for 5G-NR-V2X Sidelink Communications

Tian

Islam

et al. 2023

Sensors

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“…Adaptive resource (re)selection with a resource collision detection algorithm was proposed in [22]. In [23], the authors of this article introduced a spectrum partitioning technique to avoid the overlap area of the broadcast in C-V2X Mode 3.…”

Section: A Related Workmentioning

confidence: 99%

“…The distance D should be shorter than the maximum transmission range D max . Moreover, D max is related to transmitted power, and γ min by the following expression [22], [23]:…”

Section: B C-v2x Communication Assumptionsmentioning

confidence: 99%

“…Step 1: Calculate the coding rate C rate for the desired amount of data N Bits [bits] as follows [23]: (6) where N symb , N SC , RB SCH indicate the number of symbols that carry the desired data (equal to 9), the number of subcarriers in RB (equal to 12), and the number of resource blocks, respectively. The number of bits per symbol is indicated by N el .…”

Section: B C-v2x Communication Assumptionsmentioning

confidence: 99%

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Congestion Control in Autonomous Resource Selection of Cellular-V2X

Sabeeh

Wesołowski

2023

IEEE Access

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Intelligent transportation systems have recently become a promising technology for future industry to provide safe, green, and automated driving. In this regard, the Third Generation Partnership Project (3GPP) has proposed to utilize cellular communication to enable direct communication between vehicles with and without cellular infrastructure assistance. 3GPP has introduced the Sensing-Based Semi-Persistent Scheduling (S-SPS) technique when coverage of the cellular system is absent. S-SPS faces resource collision and performance degradation problems when channel load increases in the network. This paper suggests a decentralized congestion control and transmission power control mechanism (TPC-DCC) with an adaptive threshold for the received signal as a combination method to decrease channel load in the network. Furthermore, this work introduces a novel channel load adjustment. The new adjusting algorithm is based on a constant difference between the upper and lower boundaries of channel load at each level to handle channel overload and provide more flexibility using DCC mechanisms. The interactions of the proposed algorithm with S-SPS and the Extended-Estimation Reservation Resource Allocation (E-ERRA) algorithms that the authors previously proposed are investigated. The results indicate that system performance can be substantially improved when the transmission power and reception threshold are adaptively adjusted to the proposed channel load adjustment. The results of E-ERRA with the proposed channel load adjustment method show promising results compared to S-SPS.INDEX TERMS C-V2X, decentralized congestion control, resource collision, S-SPS, E-ERRA. I. INTRODUCTIONIntelligent transportation systems and automated vehicles will soon be an essential part of future technologies used every day. For many years, dedicated short-range communications (DSRC) based on the IEEE 802.11p standard have been used as the only solution that supports vehicular communication [1]. 3GPP in Release 14 standardized new advanced LTE features to enable basic safety applications using direct information exchange through the SideLink (SL) communication link. SL communication takes place between vehicles themselves and between vehicles and surrounding nodes, such as roadside units, cellular and road infrastructure, and cellular devices. Vehicle communication can be supported by cellular infrastructure or not [2]. This technology is known as Cellular-Vehicle-to-Everything (C-V2X) orThe associate editor coordinating the review of this manuscript and approving it for publication was Hassan Omar .

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“…In sidelink communication, a vehicle communicates directly with another on a wireless resource (i.e., a channel in time/frequency domain), and 3GPP Release 14 supports two modes of operation (3 and 4) for resource selection. In Mode 3, the cellular base station selects wireless resources for V2V communication [11], [12], while in Mode 4, each vehicle autonomously selects a wireless resource for itself using the sensing-based semi-persistent scheduling (SB-SPS) algorithm. Since Mode 3 selects resources in a centralized way, it is possible to have more global view of the network and minimize resource collisions by maximizing the distances between vehicles that are allocated the same resources.…”

mentioning

confidence: 99%

Probabilistic resource rescheduling for C-V2X based on delivery rate estimation

Hyeon,

Lee,

Kim

et al. 2024

J. Commun. Netw.

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Vehicle-to-everything (V2X) communication is an essential component for fully autonomous vehicles in future intelligent transportation systems, and cellular-V2X (C-V2X) is a standard that allows vehicles to communicate with its surroundings using cellular technology. Among the resource allocation modes of C-V2X, Mode 4 is a distributed scheme in which each vehicle independently selects a radio resource using the sensing-based semi-persistent scheduling (SB-SPS) algorithm. However, it is susceptible to resource conflicts especially with increased vehicle density or mobility, and the conflicts cannot be detected, leading to poor performance due to collisions and interference. To address this problem, this paper proposes a delivery rate estimation based probabilistic resource re-scheduling (EB-PRS) scheme. The delivery ratio is estimated using opportunistic bloom filter-based feedback on which vehicle's messages are received successfully. Based on the estimated delivery rate, EB-PRS carefully reselects resources probabilistically to maximize performance. EB-PRS is evaluated in highway and urban scenarios using WiLabV2Xsim simulator to show that it significantly improves upon the SB-SPS by reducing packet collisions.

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C-V2X Centralized Resource Allocation with Spectrum Re-Partitioning in Highway Scenario

Cited by 13 publications

References 24 publications

A Hybrid Power-Rate Management Strategy in Distributed Congestion Control for 5G-NR-V2X Sidelink Communications

A Hybrid Power-Rate Management Strategy in Distributed Congestion Control for 5G-NR-V2X Sidelink Communications

Congestion Control in Autonomous Resource Selection of Cellular-V2X

Probabilistic resource rescheduling for C-V2X based on delivery rate estimation

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