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Achieving efficient communication for mobile devices in the new era.

机译：在新时代实现移动设备的高效通信。

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摘要

Smartphone has become one of the most revolutionary devices in the history of computing. With various kinds of applications, the scope of smartphone has been significantly broadened in the past few years including almost every aspect in our daily life. However, due to the limited on-board resources such as CPU, storage, network bandwidth and battery power, smartphones and the mobile network serving them bring new challenges that have not been encountered in the traditional computing and networking environments.;This dissertation focuses on the research areas of improving the network architecture and enhancing the current applications on smartphones. It mainly investigates the areas in the following two directions for three representative categories of mobile services.;• In the first direction, the dissertation aims to develop new communication models for smartphone Ad-Hoc networks to achieve efficient communication in the proximity. It is motivated by the fact that smartphone Ad-Hoc networks can help improve the current location-based services and propel new applications. Moreover, the new communication models provide complementary alternatives to the traditional infrastructure-based wireless networks.;• In the second direction, the dissertation focuses on improving the other two categories of services, cloud storage services and real-time video streaming services for mobile devices. In the field of cloud storage, we introduce a cloud-assisted approach to provide a set of advanced file operations, such as encryption, decryption and compression, on smartphones. Furthermore, by utilizing the on-board Near Field Communication(NFC) module, we develop an algorithm to securely share the files between mobile devices. For the services of real-time video streaming, we propose approaches that identify a user's status by analyzing the accelerometer data and then, dynamically adjust the buffer mechanism to save network bandwidth on smartphones.;The proposed communication models and enhanced applications have been intensively evaluated with both experiments and simulations. Compared to the prior work, this dissertation has identified a few important problems for the efficient communication on mobile devices and provided novel solutions to improve the performance.
机译：智能手机已成为计算历史上最具革命性的设备之一。随着各种各样的应用，智能手机的范围在过去几年中得到了极大的扩展，包括我们日常生活中的几乎所有方面。然而，由于机载资源（如CPU，存储，网络带宽和电池电量）有限，智能手机及其服务的移动网络带来了传统计算和网络环境中未遇到的新挑战。改善网络架构和增强智能手机当前应用的研究领域。它主要研究以下三个方向的移动服务的三个代表性类别的区域。；•在第一个方向上，本文旨在为智能手机Ad-Hoc网络开发新的通信模型，以实现附近的有效通信。其动机是因为智能手机的Ad-Hoc网络可以帮助改善当前的基于位置的服务并推动新的应用程序。此外，新的通信模型为传统的基于基础结构的无线网络提供了补充选择。；•在第二个方向上，论文着重于改进其他两类服务，即用于移动设备的云存储服务和实时视频流服务。在云存储领域，我们引入了一种云辅助方法，以在智能手机上提供一组高级文件操作，例如加密，解密和压缩。此外，通过使用板载近场通信（NFC）模块，我们开发了一种算法来安全地在移动设备之间共享文件。对于实时视频流服务，我们提出了以下方法：通过分析加速度计数据来识别用户的状态，然后动态调整缓冲机制以节省智能手机上的网络带宽。同时进行实验和模拟。与现有技术相比，本文确定了在移动设备上进行有效通信的几个重要问题，并提出了提高性能的新颖解决方案。

著录项

  • 作者

    Mao, Ying.;

  • 作者单位

    University of Massachusetts Boston.;

  • 授予单位 University of Massachusetts Boston.;
  • 学科 Computer science.;Computer engineering.;Information technology.
  • 学位 Ph.D.
  • 年度 2016
  • 页码 151 p.
  • 总页数 151
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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