189 / 2015-12-08 14:41:39

Performance analysis of proactive congestion control techniques for VANETs

8677,8676,8675

A Vehicular Ad-Hoc Networks (VANETs) are technology that uses moving cars as nodes in a network to create a mobile network. VANET turns every participating car into a wireless router, allowing cars of each other to connect and create a network with a wide range.Congestion control remains the major concern for VANET application due to its characteristics such as bandwidth limitation, fast change of topology and lack of central coordination. Solutions for these are based on packet generation rate, transmit power control, utility function, carrier sense threshold or a combination of them. In this paper, the existing congestion control approach namely, proactive, Besides, we propose and implement an algorithm by which carrier sense (CS) threshold or Max Beaconing Load (MBL) value can be assigned dynamically for fine-tuning the Distributed Fair transmits Power Adjustment for VANETs (D-FPAV) congestion control approach. Comparison of the FPAV and DFPAV protocol for 50 nodes.
In addition to optimal channel bandwidth usage, the proposed algorithm can be used in any situation considering traffic and non-traffic conditions.