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"Service placement in ad hoc networks proposes the SPi service placement framework as a novel approach to service placement in ad hoc networks. The SPi framework takes advantage of the interdependencies between service placement, service discovery and the routing of service requests to minimize signaling overhead. The work also proposes the graph cost / single Instance and the graph cost / multiple Instances placement algorithms."

"Vehicular ad-hoc network merupakan bagian dari MANET yang faktor pergerakannya dibatasi oleh jalan raya dan regulasi lalu lintas. VANET didukung dengan infrastruktur yang diam di satu titik yang dapat membantu dengan beberapa layanan dan juga untuk menghubungkannya jaringan stasioner dikarenakan faktor pergerakan node yang terbatas. Model mobilitas Manhattan merupakan salah satu model mobilitas untuk menggambarkan pergerakan mobile node dari VANET yang peta pergerakannya ditampilkan seperti model perkotaan Manhattan. Pada model ini terdapat algoritma traffic light model (TLM) yang berfungsi untuk mengatur pergerakan dari mobile node saat berada di persimpangan jalan raya. Penelitian dilakukan dengan menggunakan NS-2.34 sebagai pengatur pengiriman paket data dan VanetMobiSim 1.1 sebagai alat untuk menghasilkan model pergerakan dari model mobilitas Manhattan.Dari hasil simulasi terlihat bahwa nilai end to end delay, dipengaruhi oleh padatnya node dalam suatu jaringan dan juga banyaknya rata-rata hop yang terbentuk dalam setiap rute. Dari segi rasio paket yang terkirim, nilai terbaik didapat pada jarak wireless 190m dengan nilai antara 90% - 99%. Dari segi rata-rata jumlah hop, nilai terbaik didapat pada jarak wireless 150m dengan rata-rata hop yang terbentuk antara 2.5 hingga 5 buah. Dari segi throughput, nilai terbaik didapat pada wireless range 190m dengan nilai maksimum mendekati 12 kbps untuk setiap tingkat kepadatan node.

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Vehicular ad-hoc network is a part of MANET in which the movement factors must take into considerations the road topology and traffic regulations. VANET is supported with fixed infrastructure in a crucial points which can help with a few services, such as a warning messages. It also can connect the network to stationary network. The Manhattan mobility model is one of the mobility model that can generate the map pattern of Manhattan city, which resembles a complex traffic. In this model, there is a Traffic Light Model (TLM) algorithm that can control mobile node movement in intersection. In this work we study the implementation using NS-2.34 for an application to control the packet data sending, and VanetMobiSim 1.1 is used as an application to generate the movement model from Manhattan mobility model.

The simulation result shows that the end to end delay is depends on congestion of nodes, average hop in one route and congestion window. The results shows that Manhattan mobility model can reach 140 ms end to end delay on 190m wireless range. From packet delivery ratio Manhattan mobility model can reach score between 90% - 99% in 190m wireless range. The average hop is between 2.5 - 5 in 150m wireless range. Using this model, the throughput which can be achieved is up to 12 kbps."

"Mobile Ad Hoc Networks MANETs mendapatkan aplikasi yang luas bersamaan dengan kemajuan teknologi. Namun, MANETs beresiko karena kurangnya mekanisme keamanan. Dalam makalah ini, diusulkan algoritma baru untuk pembangkit kunci dan enkripsi untuk perlindungan privasi di MANETs. Fibonacci dimodifikasi dengan menambahkan faktor pengacak untuk menghasilkan rangkaian kunci acak dengan panjang yang sesuai yang dibutuhkan namun dengan overhead komputasi yang rendah. Sistem One Time Pad OTP dimodifikasi dengan menambahkan faktor pengacak untuk kerahasiaan data melalui enkripsi yang memenuhi uji keacakan, difusi, dan konfusi. Evaluasi algoritma yang diusulkan dilakukan dengan menggunakan Matlab dan NS-2. Hasil percobaan menunjukkan bahwa algoritma yang diusulkan menghasilkan rangkaian kunci dan Ciphertext yang acak. Melalui beberapa pengujian yaitu kecepatan, korelasi dan autokorelasi, difusi, dan konfusi, hasil simulasi menunjukkan keunggulan algoritma usulan terhadap algoritma lainnya. Sebagai bukti konsep, algoritma usulan telah disimulasikan dengan simulator jaringan.

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Mobile Ad Hoc Networks MANETs get widespread applications along with the evolving technologies. However, MANETs are at risk due to the shortage of security mechanisms. In this paper, we propose new algorithms for key generation and encryption for privacy preservation in MANETs. We modified Fibonacci sequence by adding scrambling factor to generate random key sequences with required length but incurred low computational overhead. We modified the One Time Pad OTP system by adding scrambling factor for data confidentiality through encryption which satisfies the randomness, diffusion, and confusion tests. Evaluation of the proposed algorithms was conducted using Matlab and NS 2. Experiment results showed that the proposed algorithms produced random key sequences and Ciphertexts. Through several tests i.e. speed, correlation and autocorrelation, diffusion, and confusion tests, the simulation result showed the superiority of our algorithms over the other algorithms. For the proof of concept, our algorithms have been simulated in the network simulator."

"ABSTRAKJaringan wireless ad-hoc mulai banyak digunakan dalam aplikasi multimedia. Aplikasi ini mempunyai karakteristik seperti kebutuhan akan Quality of Service (QoS). Salah satu solusi untuk menjamin QoS adalah bandwidth reservation. Dalam laporan ini, akan disampaikan evaluasi unjuk kerja MAC reservation protocol untuk dukungan trafik suara pada jaringan wireless ad hoc. Protokol dievaluasi berdasarkan pada IEEE 802.11. Dalam peneliatian ini, dibuat beberapa simulasi untuk mengevaluasi unjuk kerja dari protocol MAC yang diteliti.

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ABSTRACTThe ad hoc wireless networks are increasingly used by multimedia applications. These applications are characterized by the existence of constraints on quality of service (QoS) to respect. One solution to guarantee QoS is the bandwidth reservation. In this report, I present the performance evaluation of a MAC protocol for bandwidth reservation in ad hoc networks to support wireless traffic such as voice. The protocol is evaluated based on IEEE 802.11. I have made several simulations to evaluate the performance of MAC protocol considered."

"This book constitutes the refereed proceedings of the 11th International Conference on Ad-hoc, Mobile, and Wireless Networks, ADHOC-NOW 2012 held in Belgrade, Serbia, July 9-11, 2012. The 36 revised full papers presented were carefully reviewed and selected from 76 submissions. The accepted papers cover a wide spectrum of traditional networking topics ranging from routing to the application layer, to localization in various networking environments such as wireless sensor and ad-hoc networks, and give insights in a variety of application areas."

"This volume constitutes the refereed proceedings of the Third International ICST Conference, ADHOCNETS 2011, held in Paris, France, in September 2011. The 15 revised full papers - selected from 42 submissions - and the 2 invited papers cover several fundamental aspects of ad hoc networking, including security, quality of service, radio and spectrum analysis, mobility, energy efficiency, and deployment. They are organized in topical sections on security and QoS, WSN development and evaluation, radio and spectrum analysis, mobile WSNs, mobile ad hoc networks, and energy."

"This book constitutes the thoroughly refereed post-conference proceedings of the 7th International Workshop on Algorithms for Sensor Systems, Wireless Ad Hoc Networks, and Autonomous Mobile Entities, ALGOSENSORS 2011, held in Saarbrücken, Germany, in September 2011. The 16 revised full papers presented together with two invited keynote talks were carefully reviewed and selected from 31 submissions. The papers are organized in two tracks: sensor networks, covering topics such as localization, lifetime maximization, interference control, neighbor discovery, self-organization, detection, and aggregation; and ad hoc wireless and mobile systems including the topics: routing, scheduling and capacity optimization in the SINR model, continuous monitoring, and broadcasting."