scholarly journals Students Social Based Mobility Model for MANET-DTN Networks

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Dávid Hrabčák ◽  
Martin Matis ◽  
L’ubomír Doboš ◽  
Ján Papaj

In the real world, wireless mobile devices are carried by humans. For this reason, it is useful if mobility models as simulation tools used to test routing protocols and other MANET-DTN features follow the behaviour of humans. In this paper, we propose a new social based mobility model called Students Social Based Mobility Model (SSBMM). This mobility model is inspired by the daily routine of student’s life. Since many current social based mobility models give nodes freedom in terms of movement according to social feeling and attractivity to other nodes or places, we focus more on the mandatory part of our life, such as going to work and school. In the case of students, this mandatory part of their life is studying in university according to their schedule. In their free time, they move and behave according to attractivity to other nodes or places of their origin. Finally, proposed SSBMM was tested and verified by Tools for Evaluation of Social Relation in Mobility Models and compared with random based mobility models. At the end, SSBMM was simulated to examine the impact of social relations on routing protocols.

2013 ◽  
Vol 8 (1) ◽  
pp. 751-767
Author(s):  
Shruti Bajaj ◽  
Er. Rajdeep Singh ◽  
Er. Parveen Kakkar

Ad-hoc network is a collection of wireless mobile nodes which dynamically form a temporary network without the use of any existing network infrastructure or centralized administration. It may connect hundreds to thousands of mobile nodes. The mobile nodes communicate directly with each other without the aid of access points. They form an arbitrary topology, where the routers are free to move randomly and arrange themselves as required. In this paper, an attempt has been made to investigate the impact of mobility models on the performance of three MANET on-demand reactive routing protocols: AODV, DSR and DYMO. The mobility models that are used in this work are: Random Waypoint mobility model and Group mobility model. The performance differentials are analyzed using varying network size, varying pause time, and varying velocity. We used Qual-Net [18] from scalable networks for the simulation purpose. The performance analysis is based on different network metrics such as packet delivery ratio, throughput, average end –to –end delay and average jitter.


2019 ◽  
Vol 20 (1) ◽  
pp. 17-26
Author(s):  
Md. Sharif Hossen ◽  
Muhammad Sajjadur Rahim

Intermittently connected mobile networks are sparsely connected wireless ad-hoc networks where there is no end-to-end path from a source device to a destination. Generally, these paths do not exist. Hence, these devices use intermittent path using the concept of the store-and-forward mechanism to successfully do the communication. These networks are featured by long delay, dissimilar data rates, and larger error rates. Hence, we see the analysis of several delay-tolerant routing protocols, e.g., epidemic, spray-and-wait, prophet, maxprop, rapid, and spray-and-focus using opportunistic network environment simulator. At first, the investigations of the above considered routing protocols are done across three mobility models namely random direction, random walk, and shortest path map based movement mobility model for node impact only. Then, we evaluate these routing protocols against the impact of message copy, buffer, and time-to-live using shortest path map considering the result of node impact. We use three metrics and the result shows that spray-and-focus deserves good performance for showing higher delivery, lower latency, and lower overhead among all routing techniques while epidemic the poor.


10.29007/4tv9 ◽  
2018 ◽  
Author(s):  
Vishnupriya Kuppusamy ◽  
Leonardo Sarmiento ◽  
Asanga Udugama ◽  
Anna Förster

Simulations of Opportunistic Networking (OppNet) protocols require the use of suitable synthetic mobility models or real world traces. Many synthetic mobility models have been proposed based on the study of human mobility individually and in groups. Opportunistic Protocol Simulator (OPS) is a budding simulator which is based on OMNeT++ to simulate OppNets. However, compared to other OppNet simulators in the literature, only very few synthetic mobility models exist in OMNeT++ currently, restricting the simulation of OppNets to using the existing mobility models or traces. In this paper, we develop two more synthetic mobility models in OMNeT++ namely community-based mobility model and probabilistic ORBIT based mobility, which can enhance the simulating environment available for OppNets in OMNeT++.


Routing protocols can be tested in realistic conditions of Mobile Ad-hoc network (MANET)). The performance of MANET depends on different parameters such as used number of nodes, mobility speed, routing protocols, mobility model and energy models etc. In this paper, researchers made an effort to analyze the impact of energy and mobility on the performance of AODV and DSR routing protocols with varying mobility speed under random waypoint mobility model and radio energy models in the MANET. Detailed simulations have been carried out using QualNet simulator for 50 nodes. Performance of AODV and DSR routing protocols has been analyzed under the premise of performance metrics namely average throughput, average end to end delay and average jitter using CBR traffic patterns.


2021 ◽  
Vol 2 (1) ◽  
pp. 8-14
Author(s):  
Rafinita Aditia

Abstract—This study aims to find out about the phubbing phenomenon as a degradation of social relations as a result of social media. The term phubbing is an abbreviation of the words phone and snubbing, which are used to show the attitude of hurting the other person by using an excessive smartphone. This type of research used a qualitative approach with descriptive methods. The data needed in this study are qualitative data as primary data in the form of images, words and not numbers in a discourse regarding the phubbing phenomenon as a degradation of social relations as a result of social media. Based on the results of the research, it is found that phubbing behavior can threaten the disruption of ongoing communication relationships, causing social degradation. The social degradation that occurs is due to the impact of phubbing perpetrators' indifference to their environment because they are too busy using smartphones, especially in the use of social media. Therefore it is necessary to limit and control the use of social media properly so that the phubbing phenomenon can be resolved immediately and the degradation of social relations does not occur. Keywords: phubbing, degradation, social relation, social media   Abstrak—Penelitian ini bertujuan untuk mengetahui tentang tentang fenomena phubbing sebagai suatu degradasi relasi sosial sebagai dampak dari media sosial. Jenis penelitian yang digunakan menggunakan pendekatan kualitatif dengan metode deskriptif. Data yang dibutuhkan dalam penelitian ini merupakan data kualitatif sebagai data primer berupa gambar, kata-kata dan bukan angka-angka dalam sebuah wacana mengenai fenomena phubbing sebagai suatu degradasi relasi sosial sebagai dampak dari media sosial. Berdasarkan hasil penelitian diperoleh hasil bahwa perilaku phubbing mampu mengancam terganggunya hubungan komunikasi yang sedang berlangsung, sehingga menyebabkan degradasi sosial. Degradasi sosial yang terjadi ialah karena dampak dari keacuhan pelaku phubbing terhadap lingkungannya karena terlalu sibuk menggunakan smartphone, terlebih dalam penggunaan media sosial. Oleh karena itu penggunaan media sosial perlu dibatasi dan dikontrol dengan baik agar fenomena phubbing dapat segera teratasi dan degradasi relasi sosial tidak terjadi. Kata kunci : phubbing, degradasi, hubungan sosial, sosial media


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