scholarly journals Multistate Active Combined Power and Message/Data Rate Adaptive Decentralized Congestion Control Mechanisms for Vehicular Ad Hoc Networks

2022 ◽  
Vol 2161 (1) ◽  
pp. 012018
Author(s):  
M Deeksha ◽  
Ashish Patil ◽  
Muralidhar Kulkarni ◽  
N. Shekar V. Shet ◽  
P. Muthuchidambaranathan
Keyword(s):  
Ad Hoc Networks ◽  
Congestion Control ◽  
Information Exchange ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Rate ◽  
Control Mechanisms ◽  
Rate Adaptive ◽  
Efficient Information ◽  
Hoc Networks

Abstract Vehicular ad hoc networks (VANETs) have emerged in time to reduce on-road fatalities and provide efficient information exchange for entertainment-related applications to users in a well-organized manner. VANETs are the most instrumental elements in the Internet of Things (IoT). The objective lies in connecting every vehicle to every other vehicle to improve the user’s quality of life. This aim of continuous connectivity and information exchange leads to the generation of more information in the medium, which could congest the medium to a larger extent. Decentralized congestion control (DCC) techniques are specified to reduce medium congestion and provide various safety applications. This article presents two DCC mechanisms that adapt message rate and data rate combined with transmit power control mechanism. These mechanisms are developed under multi-state active design proposed by the standard. The proposed methods deliver better performance over other mechanisms in terms of power, channel load, and channel utilization using real-time-based scenarios by simulation in SUMO.

scholarly journals Non-cooperative game based congestion control for data rate optimization in vehicular ad hoc networks

2020 ◽  
Vol 107 ◽  
pp. 102181
Author(s):  
Hayder Amer ◽  
Hayder Al-Kashoash ◽  
Mohammed J Khami ◽  
Martin Mayfield ◽  
Lyudmila Mihaylova
Keyword(s):  
Ad Hoc Networks ◽  
Congestion Control ◽  
Cooperative Game ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Rate ◽  
Hoc Networks ◽  
Rate Optimization

scholarly journals Hybrid power control and contention window adaptation for channel congestion problem in internet of vehicles network

2022 ◽  
Vol 12 (1) ◽  
pp. 497
Author(s):  
Hayder M. Amer ◽  
Ethar Abduljabbar Hadi ◽  
Lamyaa Ghaleb Shihab ◽  
Hawraa H. Al Mohammed ◽  
Mohammed J. Khami
Keyword(s):  
Ad Hoc Networks ◽  
Power Control ◽  
Congestion Control ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Wireless Channel ◽  
Contention Window ◽  
Internet Of Vehicles ◽  
Hybrid Power ◽  
Hoc Networks

Technology such as vehicular ad hoc networks can be used to enhance the convenience and safety of passenger and drivers. The vehicular ad hoc networks safety applications suffer from performance degradation due to channel congestion in high-density situations. In order to improve vehicular ad hoc networks reliability, performance, and safety, wireless channel congestion should be examined. Features of vehicular networks such as high transmission frequency, fast topology change, high mobility, high disconnection make the congestion control is a challenging task. In this paper, a new congestion control approach is proposed based on the concept of hybrid power control and contention window to ensure a reliable and safe communications architecture within the internet of vehicles network. The proposed approach performance is investigated using an urban scenario. Simulation results show that the network performance has been enhanced by using the hybrid developed strategy in terms of received messages, delay time, messages loss, data collision and congestion ratio.

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