International Journal of Information Technology & Computer Science ( IJITCS )
Vehicular Ad-Hoc Network (VANET) is an emerging technology which allows communication between cars. The main purpose of VANET is to ensure emergency messages are disseminated to drivers on time, so that necessary precaution can be taken to avoid accidents. In addition, VANET can also be used for cooperation lane change warning, internet access and better navigation, through human-computer cognitive VANET interaction with information system integration. However, VANET nodes are highly mobile in nature, moving in random transmission environment, but the current communication standards are mostly for static transmission environment. Hence, in order to ensure adaptiveness of VANET, an optimized Medium Access Control (MAC) is proposed in this paper to ensure efficient packet transmission in VANET MAC. In this paper, a novel optimization scheme for VANET MAC, namely VANET MAC Closed Loop Feedback Control System (VaMac) is proposed to optimize VANET MAC with the use of closed loop feedback control system. The proposed VaMac is simulated with the use of Omnet++ software under congested and non-congested traffic environments with the urban map of Kuala Lumpur, Malaysia. Results show better performance in terms of packet success rate and average delay, as compared to the default IEEE802.11p and the reference scheme .
: HCI, VANET, Information System Integration, Optimization, Control System
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