Tez No	İndirme	Tez Künye	Durumu
402021		Autonomous agents-based mobile-cloud computing / Yazar:PELİN ANGIN Danışman: PROF. BHARAT BHARGAVA Yer Bilgisi: Purdue University / Yurtdışı Enstitü Konu:Bilgisayar Mühendisliği Bilimleri-Bilgisayar ve Kontrol = Computer Engineering and Computer Science and Control Dizin:	Onaylandı Doktora İngilizce 2013 137 s.
The proliferation of cloud computing resources in recent years o↵ers a way for mobile devices with limited resources to achieve computationally intensive tasks in real-time. The mobile-cloud computing paradigm, which involves collaboration of mobile and cloud resources in such tasks, is expected to become increasingly popular in mobile application development. While mobile-cloud computing is promising to overcome the computational limitations of mobile devices, the lack of frameworks compatible with standard technologies makes it harder to adopt dynamic mobilecloud computing at large. In this dissertation, we present a dynamic code offloading framework for mobile-cloud computing, based on autonomous agents. Our approach does not impose any requirements on the cloud platform other than providing isolated execution containers, and it alleviates the management burden of offloaded code by the mobile platform using autonomous agent-based application partitions. We also investigate the e↵ects of di↵erent runtime environment conditions on the performance of mobile-cloud computing, and present a simple and low-overhead dynamic makespan estimation model for computation offloaded to the cloud that can be integrated into mobile agents to enhance them with self-performance evaluation capability. Offloading mobile computation to the cloud entails security risks associated with handing sensitive data and code over to an untrusted platform. Security frameworks for mobile-cloud computing are not very numerous and most of them focus only on privacy, and ignore the very important aspect of integrity. Perfect security is hard to achieve in real-time mobile-cloud computing due to the extra computational overhead introduced by complex security mechanisms. In this dissertation, we propose a dynamic tamper-resistance approach for protecting mobile computation offloaded to the cloud, by augmenting mobile agents with self-protection capability. The tamperresistance framework achieves very low execution time overhead and is capable of detecting both load-time and runtime modifications to agent code. Lastly, we propose novel applications of mobile-cloud computing for helping contextaware navigation by visually-impaired people. Specifically, we present the results of a feasibility study for using real-time mobile-cloud computing for the task of guiding blind users at pedestrian crossings with no accessible pedestrian signal.