Performance analysis and enhancement of IEEE 802.11p beaconing

Li, Xiaoying; Rhee, Seung Hyong

doi:10.1186/s13638-019-1381-9

Cited by 16 publications

(10 citation statements)

References 20 publications

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“…IEEE 802.11p supports service differentiation for different applications in VANET. Many studies have been conducted to enhance the performance of IEEE802.11p by modifying the transmission parameters [ 8 , 9 , 10 , 11 ]. Bianchi suggested a statistical approach to analyze the channel utilization and throughput [ 12 ].…”

Section: Related Workmentioning

confidence: 99%

An Enhancement for IEEE 802.11p to Provision Quality of Service with Context Aware Channel Access for the Forward Collision Avoidance Application in Vehicular Ad Hoc Network

Tripti¹,

Jibukumar

2021

Sensors

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Key application of an intelligent transportation system is traffic safety, and it provides driver assistance. Safety messages are of two types, beacon messages and event messages. The nodes broadcast these messages in the vehicular networks. The system must rely on a robust medium access control (MAC) protocol to support delivery of safety messages. The standard medium access scheme that is used in vehicular networks to provide service differentiation to support various applications is IEEE 802.11p. The emergency event messages should reach the drivers immediately to take necessary steps to avoid casualties on the road. In IEEE 802.11p, both of these messages are considered with the same priority so that no separate differentiation is created. The proposed work focuses on improving the quality of service for forward collision warning applications in intelligent transportation systems. The scheme proposes a priority-based cooperative MAC (PCMAC) for channel access that works on the context of information. Simulation and analytical results validate improved performance of PCMAC in terms of packet delivery ratio, throughput, and average packet delivery delay, as compared with other eminent MAC protocols. The simulation results show that it has a 9% higher improvement in throughput than IEEE 802.11p and has better performance in the increasing number of emergency messages.

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Section: Related Workmentioning

confidence: 99%

An Enhancement for IEEE 802.11p to Provision Quality of Service with Context Aware Channel Access for the Forward Collision Avoidance Application in Vehicular Ad Hoc Network

Tripti¹,

Jibukumar

2021

Sensors

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“…Bianchi's work is regarded as a standard in this research field. His model allows analyzing the performance of broadcast communications in vehicular networks based on IEEE 802.11p [25], [41], [42]. Applying Bianchi's model to vehicular communications where no exponential backoff is considered, the probability of packet collisions (p) can be computed as follows,…”

Section: Contention Window Control Mechanismmentioning

confidence: 99%

POSACC: Position-Accuracy Based Adaptive Beaconing Algorithm for Cooperative Vehicular Safety Systems

et al. 2020

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Cooperative vehicular safety systems are expected to revolutionize the driving experience by providing road safety applications based on incident detection. Two vital quality parameters for cooperative safety applications are the position accuracy and communication reliability of the status information. The receiver may take erroneous decisions if the received data does not correspond to the latest situation of the transmitter (e.g., position, velocity, and trajectory of the target vehicle). In this paper, we propose and evaluate a POSition-ACCuracy (POSACC) based adaptive beaconing algorithm for cooperative vehicular safety systems. POSACC integrates three different control mechanisms to guarantee specific performance metrics. It adopts the position accuracy and communication reliability as the highest priority metrics, due to their direct impact on the vehicle's systems capability to avoid potential traffic accidents in real-time. In addition, it guarantees the priority metrics, maintaining the vehicle's warning distance, channel load, and end-to-end latency into the operative range of cooperative safety applications. POSACC is compared with three different state-of-the-art adaptive beaconing algorithms; ETSI DMG, LIMERIC, and DC-BTR&P. Extensive evaluation results show that POSACC successfully controls the beacon rate, transmission power, and the size of the minimum contention window. Simulation results also demonstrate that POSACC is more effective than the benchmark algorithms by guaranteeing the operational requirements of cooperative safety applications in a wider range of traffic situations. INDEX TERMS Adaptive beaconing algorithm, communication reliability, cooperative safety applications, cooperative vehicular safety systems, position accuracy. I. INTRODUCTION Cooperative vehicular safety systems are being designed to provide accident-free and efficient road systems [1]. The new paradigm relies on equipping the vehicle with wireless communication devices to increase its perception about the The associate editor coordinating the review of this manuscript and approving it for publication was Muhammad Naeem. surrounding environment. Cooperative safety applications aim to detect potential crashes on the road and to notify vehicles in advance. The communication on these systems relies on the IEEE 802.11p [2] radio access technology in the 5.9 GHz frequency band, which specifies the mediumaccess-control (MAC) and physical (PHY) layers of Wireless Access in Vehicular Environments (WAVE) [3]. The IEEE 802.11p MAC layer is based on the Carrier Sense Multiple

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“…An EXP refers to a packet "drop" as a result of not being able to (i) make it through the backoff process and hence (ii) be transmitted within a beaconing period. Since the IEEE 802.11p broadcast of BSMs does not support retry nor acknowledgement (ACK), an expired packet is dropped and the next packet with a new sequence number is generated [31]- [33]. The reason of a packet not being able to go through a backoff process is finding the medium busy, which hinders the backoff counter from being decremented.…”

Section: ) Congestion In Dsrc Networkmentioning

confidence: 99%

Crash Risk-Based Prioritization of Basic Safety Message in DSRC

Kim

2020

IEEE Access

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Dedicated short-range communications (DSRC) is one of the key technologies enabling safety-critical applications for intelligent transportation system (ITS). Considering the significance of such safety-of-life applications, it is of utmost importance to guarantee reliable delivery of basic safety messages (BSMs). However, in accordance with a V2X network being inherently dynamic in key aspects such as vehicle density and velocity, the networking behavior of a DSRC system is usually highly complicated to analyze. In addition, the United States Federal Communications Commission (US FCC) recently proposed the so-called "5.9 GHz band innovation," which includes a plan to reduce bandwidth for DSRC to 10 MHz at best from 75 MHz. Motivated from these challenges, the necessity of "lightening" load of a DSRC network has become essential to keep safety-related operations from performance deterioration. To this end, this paper proposes a protocol that prioritizes transmission of a BSM from a vehicle according to the level of accident risk of the vehicle. The proposed protocol uses the distance of a vehicle from a danger source as the metric to determine the priority for transmission. Our results show that this protocol effectively prioritizes the transmission opportunity for dangerous vehicles, and hence results in higher performance in terms of key metrics-i.e., average latency, packet delivery rate (PDR), and inter-reception time (IRT).

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Performance analysis and enhancement of IEEE 802.11p beaconing

Cited by 16 publications

References 20 publications

An Enhancement for IEEE 802.11p to Provision Quality of Service with Context Aware Channel Access for the Forward Collision Avoidance Application in Vehicular Ad Hoc Network

An Enhancement for IEEE 802.11p to Provision Quality of Service with Context Aware Channel Access for the Forward Collision Avoidance Application in Vehicular Ad Hoc Network

POSACC: Position-Accuracy Based Adaptive Beaconing Algorithm for Cooperative Vehicular Safety Systems

Crash Risk-Based Prioritization of Basic Safety Message in DSRC

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