A cross layer approach for efficient multimedia data dissemination in VANETs

Abstract

The recent rapid expansion of multimedia applications spectrum, ranging from infotainment to healthcare and mission-critical scenarios, has incited researchers from different disciplines to develop various tools and protocols to support such applications. Many people use multimedia data while they travel in different transportation means and thus they need various QoS levels based on the type of application they are running. Such data is usually transmitted through 3G/LTE networks; however, the unprecedented increase of multimedia data volume makes satisfying their requirements in terms of low delay and higher bandwidth a challenge. Many experts foresee that Vehicular Ad-hoc Networks (VANETs) technology can be an efficient offloading solution for 3G/LTE networks by providing cost-free and robust data exchange between cars as well as among their passengers. Although VANETs pave the way toward several novel safety and non-safety applications that promise enhanced driving security and comfort, they suffer from several issues due to their intrinsic features such as higher vehicles mobility, rapidly changing topology, etc. In this work, we propose an Enhanced version of AODV (En-AODV) protocol to deal with routes instability issue in VANETs. En-AODV leverages cross-layer information on the link quality combined with the knowledge of the final destination of the receiver vehicle to establish more stable routes. The obtained simulation results confirm the efficiency of En-AODV and highlight its supremacy over AODV under various metrics and scenarios. En-AODV has particularly proven its ability to establish stable routes while significantly reduce the overhead generated by control packets, freeing up the channel to carry more data packets.

Performance Evaluation of MANET Routing Protocols AODV and DSDV Using NS2 Simulator

“…It is based on flooding algorithm which employs on the technique that a node just broadcasts the packet to all of its neighbors and intermediate nodes just forward that packet to nearby nodes and this technique will repetitive until it reaches the destination.The major representative protocols are AODV, DYMO and DSR. [16].…”

Multimedia Transmission Mechanism for Streaming Over Wireless Communication Channel

“…They also formulated an optimized mixed-integer programming module that is cost-effective concerning QoS multimedia. In another research study, author Moussaoui et al [38] have adopted VANETs technology to implement cost-free and efficient multimedia content sharing among the two vehicles and their www.ijacsa.thesai.org passengers. In this study, the authors proposed an improved cross-layer protocol that deals with routing challenges over VANETs.…”

A Multi-Hop Data Dissemination Algorithm for Vehicular Communication

“…Using a proactive local network state collection mechanism, it determines the adequate number of forwarders in a way that improves the reliability of data dissemination. In Reference [24], a protocol that enhances ad-hoc on demand distance vector (AODV) (En-AODV) is presented. En-AODV conducts two tasks: 1) establishing a stable path between two communicating vehicles and 2) replacing a broken links by an alternative link, if any link fails in the selected path.…”