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Electronics and, Malaysia

Tareq Rahem A.A.-R.,Electronics and Systems Engineering | Ismail M.,Electronics and Systems Engineering | Saad A.,Al Imam Al Adham University College
Journal of Theoretical and Applied Information Technology

To improve the routing efficiency of a MANET, two issues need to be investigated: routing table size and path selection from source to destination. Given that routing performance depends on routing table size, which is determined by the number of nodes, a detailed table representation is required. In this study, we propose a triangular routing table representation to improve routing performance. By using a low triangular matrix, routing information can be transferred between nodes more efficiently by using a smaller memory size than the memory size used by conventional routing tables. The proposed routing representation is validated by simulating 25 MANET nodes that are generated randomly by shortest path selection. The simulation shows that the proposed approach significantly reduces the memory size in transfer routing information. Besides, it is proved through using 255 nodes that they require only 3.95 KB of memory size, which does not monopolize the throughput of a network. © 2005 - 2014 JATIT & LLS. All rights reserved. Source

Al-Razak Tareq Rahem A.B.D.,Electronics and Systems Engineering | Ismail M.,Electronics and Systems Engineering | Idris A.,UTeM | Dheyaa A.,Electronics and Systems Engineering
Journal of Theoretical and Applied Information Technology

Vehicular Ad Hoc Network (VANET) is a kind of mobile ad hoc networks. VANET is used to endow wireless communication between vehicles and vehicle to road side equipments. The communication between vehicles is used for safety, placate and for entertainment as well. The performance of communication depends on the performance of routing in the network. Routing of data is dependent on the routing protocols used in network. In this study we investigated about various ad hoc routing methods so as to select suitable method for different kinds of network in VANET. The main aim of our study was identification of the ad hoc routing method that has better performance in highly mobile environment of VANET. Comparing on the basis of throughput and packet drop, it seems that position based routing method of VANET as better performance as compared to the traditional ad hoc topology based routing. However, it is not easy to provide any universal routing protocol that can deal with all the cases of VANET. The selection of a single routing protocol is not easy in VANET because the performance of the protocol depends on speed of the vehicle, driving environment etc. These factors may vary from one environment of network to another. © 2005 - 2014 JATIT & LLS. All rights reserved. Source

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