TA-MAC: A Traffic-Aware TDMA MAC Protocol for Safety Message Dissemination in MEC-assisted VANETs

Deng, Dongxiao; Rao, Wenbi; Liu, Bingyi; Jia, Dongyao; Sheng, Yang; Wang, Jianping; Xiong, Shengwu

doi:10.1109/icccn49398.2020.9209706

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…38 Therefore, the data amount in the transmission can be reduced, and the transmission delay and energy consumption are both lower compared to the existing MAC protocol. In addition, also for the VANETs, a traffic-aware time-division multiple access-based medium access control (TA-MAC) protocol is proposed by Deng et al 39 They considered the varying data traffic due to the high mobility of vehicles, and the basic slot allocation approach of TDMA cannot fully use the channel resource, and even leads to high data collision probability. 39 Therefore, Deng et al 39 established a traffic-aware mechanism for the real-time data traffic acquisition, and the TA-MAC dynamically changes the slot assignment based on the varying data traffic.…”

Section: Related Workmentioning

confidence: 99%

Parameter analysis and optimization of polling-based medium access control protocol for multi-sensor communication

Guo

Wang

et al. 2021

International Journal of Distributed Sensor Networks

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In this article, a comprehensive parameter analysis for the polling-based medium access control protocol is executed. The theoretical expressions of the relationship between network parameters and performance including delay and energy consumption are given for the first time. The specific conclusions in this article are as follows: (1) awake duration is the parameter that has the greatest impact on delay and energy consumption. Increasing the duty cycle (awake duration) will effectively reduce the delay, but will also increase the energy consumption within a certain range; (2) increasing polling duration can reduce the delay, but it will also increase the energy consumption; and (3) more forwarding nodes cause a smaller delay, and it can save the energy with modest increase of delay by reducing the polling duration. An adaptive parameter optimization polling-based medium access control protocol is proposed to optimize network performance. In this protocol, the residual energy gets fully used to increase awake duration and polling duration, which makes the delay smaller, and the network maintains a long lifetime meanwhile. Based on the results of the analysis, the adaptive parameter optimization polling-based medium access control protocol proposed in this article reduces the delay by 22.40% and increases the energy efficiency by 23.25%.

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