Optimized beaconing rate control for vehicular Ad-hoc networks

Tang, Lun; Liu, Yifu; Chen, Qianbin

doi:10.1016/s1005-8885(15)60688-4

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…Since vital communication in VANETs is a broadcasting mode, several works on the theoretical performance of VANETs have employed high priority-based broadcast for safety applications [14][15][16][17]. While the analytical model of a VANET for service applications was introduced in [18][19], the model in [5] is based on a Markov chain model.…”

Section: Related Workmentioning

confidence: 99%

A Comprehensive Performance Analysis of IEEE 802.11p based MAC for Vehicular Communications Under Non-saturated Conditions

et al. 2017

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Abstract. Reliable and efficient data broadcasting is essential in vehicular networks to provide safety-critical and commercial service messages on the road. There is still no comprehensive analysis of IEEE 802.11p based MAC that portrays the presence of buffer memory in vehicular networks. Besides, most of the analytical works do not fulfill some of the IEEE 802.11p specifications, such as short retry limit and back-off timer freezing. This paper proposes a 1-D and 2-D Markov model to analyze mathematically IEEE 802.11p based MAC for safety and non-safety messages respectively. The work presented in this paper takes into account the traffic arrival along with the first-order buffer memory and freezing of the back-off timer as well, to utilize the channel efficiently and provide higher accuracy in estimation of channel access, yielding more precise results of the system throughput for non-safety messages and lower delay for safety messages. Furthermore, back-off stages with a short retry limit were applied for non-safety messages in order to meet the IEEE 802.11p specifications, guaranteeing that no packet is served indefinitely, avoiding the overestimation of system throughput. A simulation was carried out to validate the analytical results of our model.

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Section: Related Workmentioning

confidence: 99%

A Comprehensive Performance Analysis of IEEE 802.11p based MAC for Vehicular Communications Under Non-saturated Conditions

et al. 2017

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“…The model offered ACK and RTS/CTS mechanisms under a channel error transmission with priority scheme in order to meet the EDCA specifications. Since the vital communication in VANETs is a broadcasting mode, [14][15][16][17] discussed VANETs' theoretical performance which employed high priority-based broadcast for safety applications based on one-dimensional (1-D) Markov chain model to calculate the throughput and delay for emergency, and routine applications. Unlike the analysis of IEEE 802.11p for safety applications, the analytical model of VANETs for service applications was introduced by [18][19][20] based on bi-dimensional Markov chain model.…”

Section: Related Workmentioning

confidence: 99%

An Accurate Performance Analysis of Hybrid Efficient and Reliable MAC Protocol in VANET under Non-saturated Conditions

Almohammedi¹,

Noordin²,

Sali³

et al. 2017

IJECE

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Vehicular Ad Hoc Networks (VANETs) is a technology supporting two types of applications, safety and service applications with higher and lower priorities respectively. Thereby, Medium Access Control (MAC) protocol is designed to provide reliable and efficient data broadcasting based on prioritization. Different from the IEEE 1609.4 (legacy), HER-MAC protocol is a new multi-channel MAC proposed for VANETs, offering remarkable performance with regards to safety applications transmission. This paper focuses on the analysis of packet delivery ratio of the HER-MAC protocol under non-saturated conditions. 1-D and 2-D Markov chains have been developed for safety and non-safety applications respectively, to evaluate mathematically the performance of HER-MAC protocol. The presented work has taken into account the freezing of the backoff timer for both applications and the backoff stages along with short retry limit for non-safety applications in order to meet the IEEE 802.11p specifications. It highlights that taking these elements into consideration are important in modeling the system, to provide an accurate estimation of the channel access, and guarantees that no packet is served indefinitely. More precise results of the system packet delivery ratio have been yield. The probability of successful transmission and collisions were derived and used to compute the packet delivery ratio. The simulation results validate the analytical results of our models and indicate that the performance of our models outperformed the existing models in terms of the packet delivery ratio under different number of vehicles and contention window. Keyword:Backoff

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