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Abstrak :
Traffic is a major problem in large cities which requires wireless infrastructure that controls traffic density. Vehiculer Ad-hoc Network (VANET) which becomes communication among vehicles can solve the main problem of traffic congestion. VANET requires dynamic routing protocols such as AODV routing protocol and its extensions such as AODV-UU. Manhattan map is used in this simulation because it represents the condition of a big city. VANET network simulation with AODV routing protocol uses network simulator 2 (NS2) with the scenario of traffic density addition. We simulate routing protocol is AODV, AODV-UU, and AODV with malicious node attacks on Manhattan mobility model. The simulation results show that VANET is more effective and efficient using AODV-UU than other routing protocol, because AODV-UU routing protocol has fast computation in transferring data. The results of VANET simulation experiments with AODV-UU routing protocol generated average delay of 16.56 ms, average packetloss of 0.228%, and average throughput of 159.64 ms. In the VANET network simulation using AODV routing protocol with malicious nodes attack mode, packetloss values generated in very large values from 30% to 50%. This results shows that a malicious hacker attacks on VANET network using AODV routing protocol will decrease the Quality of Service (QoS) performance.

Abstrak :
[ABSTRAK
VANET adalah sebuah jaringan tanpa infrastruktur yang terdiri dari entitas atau node bergerak yang memiliki perangkat wireless untuk berkomunikasi satu sama lain. VANET memiliki topologi yang dinamis yang disebabkan oleh mobilitas dari node-node pada VANET. Dalam simulasi pada vanet dibutuhkan model mobilitas yang mencerminkan keadaan sebenarnya. Model mobilitas menentukan pergerakan dari entitas/node, bagaimana node bergerak, kecepatan dan percepatan dalam VANET. Untuk mencegah kemacetan di jalan raya dilakukan load balancing/pengalihan arus kendaraan untuk membagi trafik kendaraan, dengan satu jalur jalan raya, kepadatan kendaraan akan sangat tinggi, pada topologi grid map dengan load balancing, kepadatan kendaraan dapat berkurang. Pada simulasi didapatkan penurunan kinerja pada model mobilitas grid map dengan load balancing. Pada load balancing, perubahan topologi yang menjadi lebih besar mengakibatkan penurunan kinerja dari load balacing pada model mobilitas gridmap dengan 19,3% pada delay, 5,08% pada packet delivery ratio dan 5,46% pada throughput dalam paramater AODV dan 0,01% pada delay, 12,70% packet delivery ratio dan 12,73% pada throughput dalam parameter DSDV.

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ABSTRACT
VANET is an infrastucture less network that consist of entities or mobile nodes that contain wireless device for communicating each other. VANET has dynamic topology due to node mobility. VANET simulation is need mobility model that reflecting the real situation. Mobility model determines the movement of mobile nodes how their location, velocity and acceleration in VANET. To prevent congestion on the road, grip map topology is use to divide the traffic, with the one lane road map, the vehicles density will very high, with load balance grid map topology the vehicles density will separated to other road. On simulation result we get the decrease performance on the load balacing of grid map mobility model. On the load balancing dynamic topology will cause scalability of the network and impact to performance of mobility model. From simulation, load balancing of grid map mobility model has lower performace than common grid map with 19,3% on delay, 5,08% on packet delivery ratio, and 5,46% on throughput with AODV parameters and 0,01% on delay, 12,70% on packet delivery ratio and 12,73% on throughput with DSDV parameters;VANET is an infrastucture less network that consist of entities or mobile nodes that contain wireless device for communicating each other. VANET has dynamic topology due to node mobility. VANET simulation is need mobility model that reflecting the real situation. Mobility model determines the movement of mobile nodes how their location, velocity and acceleration in VANET. To prevent congestion on the road, grip map topology is use to divide the traffic, with the one lane road map, the vehicles density will very high, with load balance grid map topology the vehicles density will separated to other road. On simulation result we get the decrease performance on the load balacing of grid map mobility model. On the load balancing dynamic topology will cause scalability of the network and impact to performance of mobility model. From simulation, load balancing of grid map mobility model has lower performace than common grid map with 19,3% on delay, 5,08% on packet delivery ratio, and 5,46% on throughput with AODV parameters and 0,01% on delay, 12,70% on packet delivery ratio and 12,73% on throughput with DSDV parameters, VANET is an infrastucture less network that consist of entities or mobile nodes that contain wireless device for communicating each other. VANET has dynamic topology due to node mobility. VANET simulation is need mobility model that reflecting the real situation. Mobility model determines the movement of mobile nodes how their location, velocity and acceleration in VANET. To prevent congestion on the road, grip map topology is use to divide the traffic, with the one lane road map, the vehicles density will very high, with load balance grid map topology the vehicles density will separated to other road. On simulation result we get the decrease performance on the load balacing of grid map mobility model. On the load balancing dynamic topology will cause scalability of the network and impact to performance of mobility model. From simulation, load balancing of grid map mobility model has lower performace than common grid map with 19,3% on delay, 5,08% on packet delivery ratio, and 5,46% on throughput with AODV parameters and 0,01% on delay, 12,70% on packet delivery ratio and 12,73% on throughput with DSDV parameters]

Abstrak :
ABSTRAK
Vehicular Ad Hoc Network (VANET) dibangun berdasarkan standar yang dibuat oleh Institute of Electrical and Electronics Engineers (IEEE) yang diatur pada standar IEEE 802.11p/1609.4. Jaringan antar kendaraan dirancang untuk memberikan keamanan dan keselamatan pada kendaraan melalui aplikasi safety. VANET juga memungkinkan terjadinya pertukaran pesan nirkabel antar kendaraan atau dengan infrastruktur yang berada di jalan yang diperuntukkan untuk aplikasi non safety. Operasi multi channel digunakan untuk mendukung aplikasi safety dan non safety, sehingga dapat berjalan pada kanal yang berbeda dengan prinsip perpindahan channel secara periodik. Pada tesis ini dilakukan evaluasi performa operasi multi channel untuk aplikasi safety dan non-safety pada jaringan vehicular ad hoc network. Penelitian dilakukan dengan membangun simulasi menggunakan aplikasi Network Simulator (NS-2) versi 2.34. Pada NS-2.34 yang diinstall ditambahkan dengan modul WAVE1609 Tool yang dikembangkan oleh Ali J. Ghandour. Hasil output akhir pada NS-2 akan divisualisasikan berupa tabel dan grafik yang kemudian akan dianalisa lebih lanjut menggunakan metrik pengukuran packet delivery ratio, throughput, delay, jitter, dan frame loss dengan menggunakan script AWK beserta beberapa tambahan modifikasinya. Dari hasil serangkaian simulasi mengindikasikan bahwa operasi multi channel dapat memberikan kinerja QoS yang lebih baik dibanding single channel. Penggunaan skema multi channel dapat mengurangi tingkat contention antar aplikasi safety dan non safety sehingga berdampak pula berkurangnya jumlah packet loss sebesar 47% dibanding single channel.

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ABSTRACT
Vehicular Ad Hoc Network (VANET) is built based on the standard made by the Institute of Electrical and Electronics Engineers (IEEE) regulated by IEEE 802.11p/1609.4. between vehicle or infrastructure on the road assigned for non safety application. Multi channel operation is used to support the safety and non safety application, so it can run on different channels with periodic channel switching. The objectives of this study were to evaluate the multi channel operation performance for safety and non safety application on vehicular ad hoc network. The research methods is by building the simulation using Network Simulator (NS-2) version 2.34 with the addition of non safety application module of WAVE1609 Tool. The result of this simulation indicates that multi channel operation can provide better QoS performance than single channel. The use of multi channel scheme can reduce the level of contention between safety and non safety applications that impact the amount of packet loss is reduced by 47% than single channel.

Abstrak :
This book reports on a novel concept of mechanism transitions for the design of highly scalable and adaptive publish/subscribe systems. First, it introduces relevant mechanisms for location-based filtering and locality-aware dissemination of events based on a thorough review of the state-of-the-art. This is followed by a detailed description of the design of a transition-enabled publish/subscribe system that enables seamless switching between mechanisms during runtime. Lastly, the proposed concepts are evaluated within the challenging context of location-based mobile applications. The book assesses in depth the performance and cost of transition execution, highlighting the impact of the proposed state transfer mechanism and the potential of coexisting transition-enabled mechanisms.