Distribution of Safety Messages Using Mobility-Aware Multi-Hop Clustering in Vehicular Ad Hoc Network

Abstract

Reliability and security when distributing safety messages among vehicles in an extremely mobile environment are prominent issues in Vehicular Ad-Hoc Networks (VANETs). In VANET, data transfer becomes challenging because of inherent features such as excessive speed, geographically constrained topologies, unsteady communication links, diversity in the capacity of the channel, etc. A major challenge in the multi-hop framework is maintaining and building a path under such a rigid environment. With VANET, potency in the traffic safety applications has performed well because of the proper design of medium access control (MAC) protocols. In this article, a protocol is proposed pertaining to the distribution of safety messages named mobility-aware multi-hop clustering-based MAC (MAMC-MAC) to accomplish minimum communication overhead, high reliability, and delivery of safety messages in real-time environments. MAMC-MAC has the ability to establish clustering-based multi-hop sequence using the time-division multiple access (TDMA) technique. The protocol was specially developed for highway outlines to achieve network enhancement and efficient channel usage and guarantees integrity among the vehicles. The performance of the proposed protocol is evaluated using Network Simulator (NS-2), and it demonstrates its superiority over various standard protocols in terms of a number of quality-of-service (QoS)-based parameters. The criteria to select and assess these parameters are their sensitivity and importance to the safety-based applications they provide.

Vehicular multihop intelligent transportation framework for effective communication in vehicular ad‐hoc networks

“…The protocol was created specifically for highway outlines in order to improve network efficiency and channel use while also ensuring vehicle integrity. The performance was assessed using network simulator (NS‐2), with improved quality‐of‐service (QoS)‐based characteristics 12 …”

A Reliable Merging Link Scheme Using Weighted Markov Chain Model in Vehicular Ad Hoc Networks

“…However, because of the large size of the control frame in VeMAC, contact over the control channel becomes an overhead. [20]. Note: THSO is the ratio of a THS's necessary time slots to the total number of time slots available for that THS.…”

“…As a result, the techniques are more suited to a single traffic condition, and the mobility component is overlooked, resulting in access and merging crashes with all automobiles travelling at constant speed in a medium-density environment. In [20], MAMC-MAC protocol was developed to increase VANET reliability and to convey safety alerts. It utilized a hopsector message direction schema to maximize the message delivery into a particular domain in real time.…”

“…The MAMC-MAC protocol is more appropriate for a single traffic scenario, and the mobility factor is not taken into account. In [20], MAMC-MAC protocol was developed to increase VANET reliability and to convey safety alerts. It utilized a hopsector message direction schema to maximize the message delivery into a particular domain in real time.…”

Mitigating Broadcasting Storm Using Multihead Nomination Clustering in Vehicular Content Centric Networks

“…In a beacon message, they share vehicle ID, direction, and speed information with the neighbor vehicle. The neighbor vehicles receives the packet and generates the beacon packet in response [3][4][5][6]. Due to the high speed of mobile nodes, they change the topology frequently and create communication delay, disruptive communication links, and network load.…”