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DTCR: delay time aware controlled rebroadcasting mechanism for intelligent transportation systems
Soft Computing ( IF 4.1 ) Pub Date : 2021-07-12 , DOI: 10.1007/s00500-021-06021-8
Banar Fareed 1, 2 , Mehmet Toycan 3 , Amin Salih Mohammed 4, 5
Affiliation  

Mobile ad hoc networks include VANETs (vehicular ad hoc networks) characterized to enhance vehicles’ wireless connectivity. In intelligent transportation systems (ITS), information can be exchanged over long distances as long as a means of retransmission exists. ITS uses the broadcasting technique for message transmission, and the network should have characteristics to overwhelm duplicate packets. Because of broadcasting, there is a higher chance of packet loss because of bandwidth utilization by the messages, which is a severe issue. Delay time-aware controlled rebroadcasting (DTCR) routing protocol is presented in this research study which inherits hybrid probabilistic and parametric broadcasting mechanisms. The algorithm is characterized to analyze the probabilistic-temporal characteristics of traffic applications by using Omnet++, SUMO, and Veins simulation tools. The optimal TTL rate is evaluated by considering the density and location of nodes with the network topology. SINR performance metric is used for the control of message broadcasting. The transmitted messages are stored in the transmission queue for a particular time based on latency. Once the timer is expired, the vehicle decides whether to retransmit the packet or not based on the duplicates found or not. The proposed mechanism improves the maximum successful transmission of messages while avoiding duplications for the stability of road traffic safety against failures. Analytical and simulation results demonstrate that DTCR offers an improvement on system performance characteristics in terms of throughput, delivery ratio, and delay time when compared with other routing protocols. These results lead to improve the average network throughput by 1%, 22%, and 30% as compared with DABFS, LOA, and NBP, respectively.



中文翻译:

DTCR:智能交通系统的延迟时间感知控制重播机制

移动自组织网络包括以增强车辆无线连接为特征的 VANET(车辆自组织网络)。在智能交通系统 (ITS) 中,只要存在转发方式,信息就可以远距离交换。ITS 使用广播技术进行消息传输,网络应具有压倒重复数据包的特性。由于广播,由于消息占用的带宽而导致丢包的可能性更高,这是一个严重的问题。本研究介绍了延迟时间感知受控转播 (DTCR) 路由协议,该协议继承了混合概率和参数广播机制。该算法的特点是利用Omnet++、SUMO、和静脉模拟工具。通过考虑具有网络拓扑结构的节点的密度和位置来评估最佳 TTL 速率。SINR 性能指标用于控制消息广播。传输的消息根据延迟存储在传输队列中的特定时间。一旦定时器超时,车辆根据发现的重复数据决定是否重传数据包。所提出的机制提高了消息的最大成功传输,同时避免了重复,以确保道路交通安全免受故障的影响。分析和仿真结果表明,与其他路由协议相比,DTCR 在吞吐量、传递率和延迟时间方面提供了系统性能特征的改进。

更新日期:2021-07-12
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