عنوان مقاله
ارتقاء ظرفیت، پایایی و عمر وسایل سیار با محاسبات ابری
فهرست مطالب
مقدمه
مدل پیشنهادی
اجزای سیستم سیار
ایمنی شبکه سیار در ابر
شبیه سازی
نتیجه گیری
بخشی از مقاله
پروتکل زمان بندی خدمات
در این بخش، نمونه ای از درخواست خدمات محاسبه ابر و نمودار زمان بندی برای خدمات بهداشتی سیار ایمن مطرح می کنیم. وقتی ایستگاه سیار (MS)درخواست خدمات محاسبه ابر را می کند، الگوی فعلی شبکه های بی سیم آن است که درخواست باید از طریق گره تهیه کننده خدمات (شبکه) (SP)منتقل شود. به منظور تائیدMS برای خدمات درخواست شده، لازم است ایمنی تائید گردد.
فرض کنید که در این مورد، MS تلفن هوشمند، پردازش نرم افزار ایمن سیگنال سنسور چند رسانه ای را درخواست می کند. ارزیابی نیازمندی پهنای باند وQoS توسط تهیه کننده خدمات انجام می شود. سپس سیگنال سنسور برای پردازش سیگنال دیجیتالی به ابر منتقل می شود. آنگاه اطلاعات فیزیولوژیکی استخراج شده به سرور برنامه های کاربردی تهیه کننده خدمات برای آنالیز بیشتر و تصمیم گیری منتقل می شود.
کلمات کلیدی:
Improving the Capacity, Reliability & Life of Mobile Devices with Cloud Computing Mzomuhle NKOSI, Fisseha MEKURIA CSIR, Meiring Naude Road, Pretoria, 0001, South Africa Tel: +27 12 8413986, Fax: + 27 12 8414064,Email: MNkosi@csir.co.za, FMekuria@csir.co.za Abstract: Mobile devices are being considered as service platforms for mobile health information delivery, access to information and communication. However they face challenges with regard to delivering secure multimedia based services due to limitations in computation and power supply. The limitation in computational capacity and limited battery power renders them unusable to run heavy multimedia & security algorithms. In this paper a framework to relieve mobile devices from executing heavier multimedia and security algorithms in delivering mobile health services is described. The proposed framework uses a Cloud Computing protocol management model, which intends to provide multimedia sensor signal processing, secure storage as a service to mobile devices. The approach in this paper is to model the mobile cloud computing process in a 3GPP IMS software development and emulator environment. And show that multimedia and security operations can be performed in the cloud, allowing mobile service providers to subscribe and extend the capabilities of their mobile applications beyond the existing mobile device limitations. Reference is given to mobile health as a relevant mobile application. Keywords: Multimedia & security Management, mobile applications, Mobile Cloud computing. 1. Introduction Mobile phones as service platforms can provide several societal, business and governmental services. Hence, serious applications, such as bank transactions, can now be performed on a mobile device, constituents can send mobile messages to their representatives in parliament, and people can access health information through text enquiries [16]. Further developments will allow mobile devices with unique features that can sense the environment and physiological parameters to enhance quality of life and remote monitoring of patients [10,17]. However, mobile devices as compared to desktops computers have limitations in computational capacity and power consumption [2,4]. These limitations must be acknowledged when developing mobile applications and hinders them from functioning in a more or less acceptable capability and reliability like desktop computers. Users of desktop PC based online applications have become comfortable with accessing more sensitive health applications via the Internet. This is because there are established mechanisms for securing desktop based online health applications [1,8]. Securing mobile health applications running on a mobile device is therefore an important area to ensure that applications are trustworthy and reliable [1,14]. In this paper a framework and protocol based on cloud computing is proposed to enhance the capability of mobile devices for use in advanced sensor based health care and monitoring applications. The framework can be extended to include other multimedia based mobile applications in the future.
