Multilayer Video Encoding for QoS Managing of Video Streaming in VANET Environment

Abstract

Efficient delivery and maintenance of the quality of service (QoS) of audio/video streams transmitted over VANETs for mobile and heterogeneous nodes are one of the major challenges in the convergence of this network type and these services. In this context, we propose an inter-layer approach for multimedia stream transmission in a VANET environment (VSMENET). The main idea of our work is based on the dynamic adaptation of the transmission rate according to the physical rate available in the VANET. VSMENET is all about eliminating downtime during video playback by vehicle users. This involves adapting the quality of the video to the actual performance of the VANETs, intelligent encoding of video on the Road Side Units (RSU) side, and finally continuous maintenance of the calculation tasks on the RSU side and sufficient video data on the vehicle node side. Thus, we are interested in the process of evaluating the strict parameters of the VANETs, influencing the video transmission. For example, we propose, on the one hand, an architecture for intelligent data selection and good clock synchronization, and, on the other hand, efficient management of the availability and consumption of video data. We used the NetSim simulator to test the proposed approach performance. To this end, several algorithms such as OCLFEC, MAC, ShieldHEVC, and AntArmour have been implemented for such a performance comparison. Our work suggests that VSMENET is well concerning the average lifetime of the video packets and their delivery rate (more than 9% gain compared with other approaches).

A Multi-Channel Packet Scheduling Approach to Improving Video Delivery Performance in Vehicular Networks

“…In [18], Zhou compares the two main different technologies for vehicular networks, i.e., Dedicated Short-Range Communications (DSRCs) and cellular systems, such as Long-Term Evolution (LTE). In both [19,20], the authors focus their research efforts on providing QoS in video streaming over VANETs and, specifically,on how to deliver and maintain it. In [19], specifically, the authors study and compare the existing methods in the literature for achieving QoS and also QoE (Quality of Experience), and they present several QoS and QoE metrics.…”

“…We use some of these metrics in the present work in order to assess the improvements achieved by our proposals. In [20], the authors propose an architecture for the management of QoS and QoE, based on multilayer video-encoding techniques. In [21], the authors present a literature review centered on the IEEE 802.11p standard and the DSRC technology.…”

Resource Allocation Methods in Vanets:a Systematic Literature Review

“…C-V2X can also achieve higher data rates and longer transmission ranges [79]. QoS and QoE are difficult to provide in VANETs due to such a dynamic network and have not been included in many VANET applications, [80]. This puts a large strain on high quality audio and video that will be required in the future for entertainment needs, [81].…”

Challenges and Opportunities for Multimedia Transmission in Vehicular Ad Hoc Networks: A Comprehensive Review

“…Similarly, Refs. [35,36] explore the challenges of video streaming in VANETs and propose a multilayer video encoding approach to manage Quality of Service (QoS) in this environment. The authors also pointed out the dynamic nature of VANETs, which can result in varying network conditions and limited resources.…”