Agung Prasetijo

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Different message urgencies leads to different bandwidth treatments in dense VANETs. Safety messages have the utmost importance in VANETs, therefore, it must have the highest assurance of delivery. However, due to the limited bandwidth of dense VANETs, safety messages could be rejected. This research is intended to formulate a policy to achieve minimal(More)
Admission control is applied to maintain a predefined Quality of Service in online streaming services such as Video-on-Demand system. In common admission control, a new request to a specific class will be rejected when the ports dedicated to such a class are fully-occupied. This proposed system is different from previous works as follows: (1) we(More)
A simple flooding mechanism for broadcasting messages over vehicular ad-hoc networks causes massive message redundancy, contention and collision known as the broadcast storm problem. Most available solutions to broadcast storm are normally based on the selection of the rebroadcast nodes depending on a given single attribute such as: sender-to-receiver(More)
Wireless sensor nodes are mostly limited in their energy. Therefore, it becomes a challenge to extend sensor nodes' life while maintaining the network overall performance. Mobility of the network sensor nodes may accelerate energy depletion and increase the need for effective energy-conserving WSN routing protocols. In this paper, we present a novel(More)
Electronic payment systems are of paramount importance in our current digital society. Security and privacy constitute crucial challenges in this area. Electronic money is indeed just digital information that can easily be copied. Moreover, users automatically leave an electronic trail of all their activities in the digital world. In this thesis an advanced(More)
Energy conservation is crucial in Wireless Sensor Networks (WSNs) for prolonging sensor node's life. This research attempts to gain benefits of Bayesian classifier through development of a Bayesian Classifier-Based Energy Aware Routing algorithm (BBEAR) for mobile WSNs. Through implementing a Bayesian classifier for routing process, a superior routing(More)
Various vehicular applications are available in VANETs either for safety-related or non-safety-related use. Collision warning and car crash alerts are those of the most important messages that own high priority to be rebroadcast than any non-safety messages. Meanwhile among non-safety messages that employs text, images and streaming packets containing(More)
Popular websites such as Google and Facebook must have an extremely large clients and providing such clients only with a single web server is absolutely insufficient. To support service availability, two or more servers are required. This, however, needs a load balancing system. A load balancing server receives web traffic and distributes the requests to(More)
Digital data storage is very critical in computer systems. Storage devices used to store data may at any time suffer from damage caused by its lifetime, resource failure or factory defects. Such damage may lead to loss of important data. The risk of data loss in the event of device damage can be minimized by building a storage system that supports(More)