Abstract
With the recent advances in the fifth-generation cellular system (5G), enabling vehicular communications has become a demand. The vehicular ad hoc network (VANET) is a promising paradigm that enables the communication and interaction between vehicles and other surrounding devices, e.g., vehicle-to-vehicle (V2V) and vehicle-to-everything (V2X) communications. However, enabling such networks faces many challenges due to the mobility of vehicles. One of these challenges is the design of handover schemes that manage the communications at the intersection of coverage regions. To this end, this work considers developing a novel seamless and efficient handover scheme for V2X-based networks. The developed scheme manages the handover process while vehicles move between two neighboring roadside units (RSU). The developed mechanism is introduced for multilane bidirectional roads. The developed scheme is implemented by multiple-access edge computing (MEC) units connected to the RSUs to improve the implementation time and make the handover process faster. The considered MEC platform deploys an MEC controller that implements a control scheme of the software-defined networking (SDN) controller that manages the network. The SDN paradigm is introduced to make the handover process seamless; however, implementing such a controlling scheme by the introduction of an MEC controller achieves the process faster than going through the core network. The developed handover scheme was evaluated over the reliable platform of NS-3, and the results validated the developed scheme. The results obtained are presented and discussed.
Highlights
Motivated by the high-speed development of the mobile internet and the growing business demand, the fifth-generation cellular system (5G) is supposed to have a low cost and low power consumption and be safe and reliable [1]
The handover process is a challenge in vehicular ad hoc network (VANET) due to the high mobility conditions and the required user experience
The handover process is implemented by an mobile edge computing (MEC) server connected to an roadside units (RSU), when vehicles come to the intersection of two coverage regions of neighboring RSUs
Summary
Motivated by the high-speed development of the mobile internet and the growing business demand, the fifth-generation cellular system (5G) is supposed to have a low cost and low power consumption and be safe and reliable [1]. High traffic density introduces data traffic overload, when using broadband access services such as transferring a video from a vehicle or a roadside unit (RSU) to solve a transport management problem [16,17] New technologies, such as mobile edge computing (MEC), software-defined networking, SDN, and blockchain, should be used to provide the required network scalability, reliability, and availability [18]. Mobile edge computing (MEC) is a recent communication technology that cellular network operators have introduced to improve network efficiency [24]. This can be achieved by offloading computing workloads to nearby clouds instead of going through the core network to the remote cloud [25]. Conducting a performance evaluation of the proposed system and the developed handover mechanism
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