دانلود رایگان مقاله انگلیسی تحرک در شبکه تلفن همراه ادهاک با استفاده از ربات تست شده - الزویر 2018

Abstract

Recently, MANET (Mobile Ad Hoc Network) researchers have shown increased interest in using mobile robot technology for their testbed platforms. Despite the existence of review papers that discuss the usage of mobile robot technology pertaining to a MANET testbed from the perspective of a MANET researcher, said ndings are rather lacklustre as it is not the sole purpose of said reviews. Hence, this review aims to comprehensively discuss and analyse MANET testbeds that were facilitated with mobile robot technology for previous undertaken research. To enable readers to keep abreast with mobile robot technology used in previous research, whilst presenting the advantages and disadvantages of said methods, this review will rst supercially discuss prior robot based MANET testbed facilities, before presenting technical analysis overview and critical analysis. Additionally, suggestions to heighten mobility mechanisms by using mobile robots to be more practical, easy and inexpensive are also included in this paper. The technical and critical content of this review is expected to be a source of reference for other MANET researchers interested in the most suitable mobile robots to ensure real mobility in their MANET testbeds.

 Conclusions and Suggestions for Future Work

Based on the studies and observations reported in this work on MANET testbeds that use mobile robot technology for real mobility, it was found that this approach was less popular compared to simulation methods. However, MANET researchers from all around the world have begun to realize the importance of the existence of such methods in MANET testbeds. Among the main reasons for the lack of use of testbeds as a platform in the experimental implementation of MANET research is the various complexities and technical know-hows that the researchers need to confront in order to develop mobile robots as well as the high costs incurred to develop the facility. At present, robot technology is growing rapidly making it increasingly easy to be learnt and understood even by non-robotic experts. ROS frameworks at the moment, have a range of readymade components that can be utilised without having to master in-depth robotic skills, and is as easy as using API software without the need of knowing details on how each process works in the background. Even robot components are becoming increasingly cheaper and easier to obtain due to current rapid open hardware and maker culture movements where even adolescents and young children have the ability and capacity to develop their own mobile robot. Apart from the complexity of the mobile robot itself, researchers also nd it dicult to implement the suggested solution that they themselves developed such as new MANET routing algorithms, MANET network coding approaches and cross layer solutions in real world implementation as compared to the form of simulation models. Moreover, the need for proper execution of the implementation developed towards each and every mobile node further increases the complexity that researchers are already faced with. Hence, to facilitate mobile robot technology for MANET testbeds, there exists an urgent need to simplify the process of research idea implementations so that they can be easily implemented or at least, can be nearly equivalent to the implementation of the suggested solutions oered in a simulation model. It is also believed that the use of technology such as the Click Modular Router and hybrid simulators like ns click (ns-2 or ns-3 bridge to Click Modular Router) are able to solve the problems that are mentioned. Testbed implementations will then become so much easier to perform and will be as easy as using simulation models. As for distributed deployment and debugging processes, the use of a latest open source solution like Puppet can simplify the process of using real implementation in testbed facilities. Although the technology to overcome the disadvantages of using testbeds, particularly ones that involve mobile robot testbeds is already in existence, this newfound technology has yet to be fully exploited in existing MANET testbeds and its promising potential should be harnessed and expanded in future developments of MANET testbeds.