Joint Power Control and Time Allocation for Joint Radar and Communication System in Cognitive Radio Enabled Vehicular Ad-hoc Networks

2020 ◽  
Author(s):  
Nan Jiang ◽  
Sai Huang ◽  
Yifan Zhao ◽  
Yuanyuan Yao ◽  
Zhiyong Feng ◽  
...  
Keyword(s):  
Cognitive Radio ◽  
Ad Hoc Networks ◽  
Power Control ◽  
Time Allocation ◽  
Communication System ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Joint Power ◽  
Hoc Networks ◽  
Joint Power Control

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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