Advances in Computer Science and Information Technology (ACSIT) Print ISSN: 2393-9907; Online ISSN: 2393-9915; Volume 2, Number 4; April-June, 2015 pp. 375-378 © Krishi Sanskriti Publications http://www.krishisanskriti.org/acsit.html A Novel Delay Optimization Technique in VANET using Beacon Frame Range Priyanka Sharma 1 and Simar Preet Singh 2 1 Research Scholar, DAV University, Jalandhar Punjab (INDIA) 2 DAV University, Jalandhar Punjab (INDIA) E-mail: 1 priyasoni289@gmail.com, 2 er.simarpreetsingh@gmail.com Abstract—The mobile ad hoc network is the network in which mobile nodes are free to move in any direction without any central control. When these nodes combine they form a network. The VANET comes under the MANET as one of its type. The smart cars in VANET moves freely in the city area. There are two types of communication possible in VANET i.e. vehicle to vehicle and vehicle to infrastructure. The smart cars i.e. the intelligent vehicles are defined respective to their distance, direction and speed analysis. If there is any accident happened in that network then the node sends this information to its neighbour node and like this the information is spread in all over the network. Similarly at the time of handoff one RSU sends the information to next RSU, so that the required information of node’s speed, directions, distance is known to the RSU in advance and hence help in reducing the delay at the time of handoff. In this there is a RSU which is attached to the main server. The vehicles communicate with radio waves and vehicle send the information of accident to the RSU which transfers it to the main server and the main server broadcast it to the other RSUs so that all the mobile nodes get this information. The servers replicate and send this information to all vehicles and the vehicles can change their direction and choose other path to reach their destination. In this paper, beacon frame range of RSU and threshold value has been discussed which helps in creating a synchronized relationship between road side unit which can help in reducing delay of packets and increasing throughput at the time of handoff of node from one road side unit to next road side unit. Keywords: RSU, BEACON FRAME, VANET, MANET, CREDENTAIL 1. INTRODUCTION [10] Vehicular Ad Hoc network (VANET) is a wireless network in which mobile nodes are free to move in the city area. For drivers the concept of VANET is best as it help in comfortable and safe driving experience. VANET is a subclass of MANET and it provides a distinguished approach of intelligent transport system. It is very necessary for the vehicles. It is a vehicle to vehicle roadside wireless communication network. It’s a self organizing network in which all the nodes serve themselves as server or client when required therefore this is a decentralized network communication in which no central control is required. Wifi IEEE 802.11 is commonly used in today era for developing VANETs. The vehicles are installed with an on board unit which acts as a network interface for the vehicles. This network interface access the 802.11b or 802.11g which are two standard access media. But these standards are the general purpose standards which are not able to get fit properly in the highly dynamic environment like VANET. So in this scenario currently describes the DSRC (Dedicated Short-Range Communication) has been proposed as a standard for VANET for short distance communication services that offers low latency and high data rates. IEEE 802.11 standards are generally made for the vehicles which are in limited range while moving. This kind of network is very optimal in increasing optimal data exchange, reduce transmission time and network usage [8]. Now in VANET the vehicles are moving from one point to another and during this they maintain their connectivity with the RSUs. As we know that smart vehicles have on board units which act as interface for their communication in the network. As vehicle is moving it gets the coverage of more than one RSU. Thus the signal transfers from one RSU to the next vehicle as moving and this transfer of signal is known as handoff. The VANET has high dynamic network topology and due to which during handoff many packets lost because of delay and information is lost which may be very important for the driver at that time [11] [12]. The literature review is written in section 1. Beacon Frame Range and Credential values are discussed in section 2. New proposed technique in section 3. Simulation results are shown in section 4. Conclusion is illustrated in section 5. 2. LITERATURE REVIEW M.S. kakkasageri represents a paper on mobile ad hoc network define the several challenges due to inherent characteristics of network like node mobility, reliability and their scarce resources etc. In this paper they define an agent based multicast routing scheme in the MANET. It can use the static and mobile agents. There are different schemes operates in the different sequence like first identifies the reliable nodes and