Survey of Context-Aware Video Transmission over Vehicular Ad-Hoc Networks (VANETs)

Abstract

Vehicular ad-hoc networks (VANETs) are defined as a group of wireless mobile nodes that characterized by their high mobility. Therefore, the topology frequently changes and high communication overhead for exchanging a new topology information has been introduced. Due to the huge enrichment by the video data based on the quality of experience recognized by the driver and knowledge of the environment , video transmission over VANETs has been considered as a critical challenge. Context-aware vehicular ad-hoc network is a novel field that introduces developed solutions for the previous challenges in VANETs and guarantees the stability of its topology through different high mobility of nodes. In this paper, we investigated the general issues related to VANETs such as characteristics, applications, and current challenges. Furthermore, we reviewed the most significant relevant studies that apply a context-aware issue as a new technique in vehicular networks that helps to overcome VANETs challenges.

Low Complexity Enhancement VVC Encoder for Vehicular Networks

“…Bandwidth restrictions and High loss rates, opportunity, connectedness, and mobility are the major issues that VANETs must contend with [2]. Bandwidth restriction is a hurdle for real-time video transmission over VANETs because video data in applications for road safety is resource-intensive [3,4]. Additionally, streaming video over VANETs remains extremely difficult because of the low battery life of vehicle nodes.…”

Low-Complexity and Hardware-Friendly H.265/HEVC Encoder for Vehicular Ad-Hoc Networks

“…The demanding challenges of VANETs are bandwidth limitations and opportunities, connectivity, mobility, and high loss rates [3]. Because of the resource-demanding nature of video data in road safety applications, bandwidth limitations is the bottleneck for real-time video transmission over VANETs [4,5].…”