Distribution of Safety Messages Using Mobility-Aware Multi-Hop Clustering in Vehicular Ad Hoc Network  
[PERSON]  
1 Electronics and Communication Engineering Department, Vagadevi College of Engineering,  
Warangal 506005, India; [EMAIL_ADDRESS] Electronics and Communication Engineering Department, Chandigarh University, Mohali 140413, India1  
[PERSON]  
2 Electomics and Communication Engineering Department, Chandigarh University, Mohali 14041  
is another challenging responsibility in the performance of VANET. This protocol would aim to shorten the delay by assuring the QoS in consideration with the throughput, packet delivery ratio (PDR), and predictable message distribution. In addition, it efficiently uses the network bandwidth [4].  
Mostly, VANET routing algorithms use both opportunistic carry-and-forward-based routing techniques and all geography-based routing to master their challenging characteristics. These techniques have authority on either global or local grips over vehicle's state for implementing a multi-hop (hopsector) forwarding scenario to reduce communication overhead while complying with latency constraints from the applications [5; 6]. With TDMA scheme, many QoS parameters can be improved without any primary domination in order to contribute moderate and predictable data diffusion in V2V communication [7]. Similarly, using a clustering protocol, vehicular schemes can be arranged in a scalable manner. To provide minimum comparable mobility, clustering protocols are used in vehicles to diminish the amount of routing information by splitting the vehicles into groups [8]. In VANET, the clustering method is the best scheme to form fixed clusters with negligible overheads. Perceiving the above issue in VANET, hops (nodes) are partitioned into distinct clusters depending upon their lanes, position, and speed. Moreover, by allocating time periods to distinct nodes, information security is incremented.  
The main objective of this work is to develop a scheme that is capable of scaling over a number of hops to convey information in a real-time layout. This requires low latency and high probability of successful delivery (PSD), mainly in the environment where there are less infrastructural facilities for communication. To address these issues while distributing a safety message in multi-hop scenario over highway conditions, we proposed a protocol named distribution of safety message using the MAMC-MAC protocol in VANET. The main characteristics of our proposed work are as follows:  
1. To increase the reliability in VANET and delivery safety messages in highway environments for multi-hop scenario, we propose an MAMC-MAC scheme.
2. To maximize the message delivery domain in a real-time scenario, we apply hopsector message directing schema, until four hops;
3. To maximize the throughput and packet delivery ratio of the safety messages, we adopt mobility-dependent clustering of hops;
4. To ensure fairness and reliability in applications, the TDMA scheme is adopted and the available dedicated short-range communication (DSRC) band is divided into frames to achieve maximized channel usage by considering uniformly disseminated vehicular density.  
When compared with other schemes, our proposed scheme guarantees channel access to all hops for transmitting safety messages. Another important characteristic of the proposed work is that no cluster head is needed for slot allocation to the hops. We can minimize supplementary overheads and grip in achieving high integrity.  
The remaining part of the article is presented as follows. Section 2 describes the related work. In Section 3, the problem explanation is presented. Section 4 determines the proposed system model protocol. Section 5 shows the evaluation and proposed work comparison. Finally, Section 6 concludes the work and defines forthcoming analysis directions.