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Abstrak :
A moving network (MONET) scenario is a particular case in which a group of nodes move to gether as a unit with respect to the ground network. Such groups are comman characteristics of the vehicular environments...

Abstrak :
WSN merupakan jaringan sensor berskala besar dengan sumber daya yang terbatas. WSN digunakan pada aplikasi yang bersifat spesifik seperti untuk militer, survei, industri sampai pada pemakaian umum. Masalah yang dihadapi WSN adalah keterbatasan sumber daya dan jaringan yang selalu berubah sehingga membutuhkan algoritma yang tepat.

Abstrak :
ABSTRAK
Pemakaian energi pada data center berbasis cloud computing semakin besar maka dari itu diperlukan penghematan pemakaian energi pada komponen data center seperti server dan switch. Skripsi ini membahas evaluasi pemakaian energi pada data center berbasis cloud computing menggunakan simulator GreenCloud yang merupakan ekstensi dari Network Simulator 2 (NS2). Simulasi evaluasi diuji pada arsitektur two-tier, three-tier dan three-tier high-speed dengan tipe Computationally Intensive Workload (CIW) dengan penerapan metode penghematan Dynamic Voltage and Frequency Scaling (DVFS), Dynamic Network Shutdown (DNS) dan DVFS+DNS. Hasil yang diperoleh menunjukkan bahwa penerapan dengan metode DNS menunjukkan penghematan yang paling efisien yaitu penghematan sekitar 69,13% pada server dan hampir 100% pada switch.

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ABSTRACT
Energy consumption in the cloud computing data center is huge. Energy consumption in the data center consists of computation energy consumption, communication energy consumption and non-IT data center facilities energy consumption. In this project we evaluate IT data center energy consumption such as server and switch using GreenCloud Simulator, that is an extension of Network Simulator 2 (NS2). Simulation applied is in the three kind of data center architectures such as two-tier, three-tier and three-tier high-speed with energy saving method such as Dynamic Voltage and Frequency Scaling (DVFS) mechanism, Dynamic Network Shutdown (DNS) mechanism, and both DVFS and DNS mechanism. The type of workload is Computationally Intensive Workload (CIW). The results indicate that the most efficient energy saving mechanism is DNS which saves energy the average of 69,13% on server and almost 100% on switch.

Abstrak :
The authors discuss the simulation architecture and the key components of NS2 including simulation-related objects, network objects, packet-related objects, and helper objects. The NS2 modules included within are nodes, links, SimpleLink objects, packets, agents, and applications. Further, the book covers three helper modules, timers, random number generators, and error models. Also included are chapters on summary of debugging, variable and packet tracing, result compilation, and examples for extending NS2. Two appendices provide the details of scripting language Tcl, OTcl and AWK, as well object oriented programming used extensively in NS2.

Abstrak :
Keberadaan data center pada sistem cloud computing sangat besar artinya. Data center yang terletak pada lapisan IaaS pada sistem cloud berisi komponen fisik yang meliputi komponen komputasi seperti server dan switch dan komponen non komputasi seperti sistem pendingin dan pengaturan suhu. Seiring dengan meningkatnya jumlah pengguna data center, maka konsumsi daya listrik pada data center akan meningkat. Telah diusulkan skema penghematan energi pada data center yakni skema DVFS dan DNS. Pada penelitian ini telah disimulasikan menggunakan GreenCloud, yang merupakan ekstensi dari NS2, kepada tiga macam arsitektur data center yakni two-tier, three-tier dan three-tier high-speed dengan jenis workload adalah High Performance Computing HPC. Penerapan skema penghematan meliputi skema DVFS dan DNS saja serta DVFS dan DNS sekaligus. Dari hasil yang diperoleh menunjukkan bahwa penerapan skema DNS menunjukkan hasil terbaik karena berhasil melakukan penghematan rata-rata sebesar 63,42% pada server dan hampir 100% pada switch. ......The existence of a data center in the cloud computing system was huge. Data center is located on the IaaS layer cloud systems containing physical component includes computing components such as servers and switches and non-computing components such as cooling systems and temperature regulation. Along with the increasing number of users of data center, then the electric power consumption in the data center will increase. Energy conservation schemes have been proposed in the data center is DNS and DVFS. In this study has been simulated using GreenCloud, which is an extension of NS2, the three kinds of data center architecture these are two-tier, three-tier and three-tier high-speed with the type of data center workloads is HPC High Performance Computing. The applications of the savings schemes include schemes DVFS only, DNS only and both DVFS and DNS. From the results obtained indicate that the application of the DNS control scheme is the best because it managed to save an average of 63.42% on the server and almost 100% on the switch for all data center architecture.