Selective Reliability: Enhancing Data Transmission in VANETs Through Clustering
R. Shiddharthya, Dr R. Gunavathib aResearch Scholar, Department of Computer Applications, Sree Saraswathi Thyagaraja College, Pollachi, India bAssociate Professor, Department of Computer Applications, Sree Saraswathi Thyagaraja College, Pollachi, India ashiddharthy@gmail.com, bgunaganesh2001@gmail.com
Keywords:
VANET, MANET, QoS, ; Reliable communication, cluster communicationAbstract
Vehicular Ad hoc Network (VANET) is a subset of Mobile Ad hoc Networks (MANETs) that functions as a self-organized system composed of vehicles equipped with On-Board Units (OBUs) for short-range communication. These units enable vehicles to communicate with one another in their vicinity. VANETs primarily depend on extensive broadcast transmissions to share messages regarding traffic conditions, collisions, and other relevant information. However, this redundancy can hinder inter-vehicle communication and exacerbate issues like rebroadcasting, particularly in collision scenarios. As the number of vehicles increases, the volume of message transmission also rises significantly, creating a challenge known as the broadcast storm. This issue can be mitigated by the proposed Selective Reliable Communication (SRC) Protocol, which enhances reliable communication by retransmitting packets to minimize overall transmission while maintaining an acceptable level of Quality of Service (QoS). The SRC protocol identifies vehicle clusters as "Zones of Interest" and forwards packets to cluster heads, which then relay them to cluster members. As a result, the SRC protocol demonstrates superior performance compared to existing protocols, achieving improvements in throughput, Packet Delivery Ratio (PDR), and average delay.
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