最近，国务院发布了《促进信息消费扩大内需的若干意见》。“信息消费”，这个我们每个人日常都越来越深地参与其中的事物，却又显得新鲜和陌生。信息消费消费的是什么？怎样消费？它的内涵是什么？它有什么样的规律和特点？这一系列的问题，都引起了全社会各方的关注和讨论。尤其是在我国经济发展面临调整和转型的关键时期，推动信息消费的对我国的政治、经济、民生、未来发展等的意义在哪里，更是各路研究机构和专家解读的对象。

泛在网将个人通信、娱乐、业务应用等都融合在了一张网内，给用户带来了更丰富的业务体验。而移动化的泛在网将更加强调用户即使在移动的状态下，也能够无缝地获得无所不能、无所不包的服务，而移动性预测技术作为一种主动积极的基于位置的服务，同时面临了更多的挑战。在研究现有移动性预测的基础上，针对未来移动泛在网络的业务模式及需求，分析了在移动泛在网络环境下的移动预测应具备的特点及其研究方向。为了能够充分适用于移动泛在网络，提出了未来的移动性预测技术，需要解决网络异构性、终端协同性以及业务智能性对移动性预测技术带来的挑战。

Air traffic controllers are often required to simultaneously communicate with several aircraft over multiple radio frequencies. As a result, during peak loading, it is common for the controller to receive multiple concurrent communications, each from a different aircraft, making it difficult to discern audio messages received from multiple pilots simultaneously. To address this problem, a modified air traffic control (ATC) interface was prototyped with the goal of increasing controller-to-pilot communication efficiency. This prototype included supplementary text cueing which was provided by a hypothetical automated text to speech system in an on-screen text box for controller reference in the event of an obscured or indiscernible radio call. The prototype was then evaluated by a group of 35 participants, all with ATC experience including 12 students and 23 instructors at the Air Force controllers' school house Keesler AFB, MS. The text cueing improved controllers' comprehension of pilots' transmissions.

This work proposes mitigating emissions vulnerability by utilizing a new method of optical communications at LOS visual ranges reminiscent of flag semaphore. Tactical QR code communications streaming digital data through optical signaling has the potential to provide tactical communications at a moderate range, allowing critical communications to be relayed to and from off-ship platforms. Additional technological advances can be used to overcome current range, security, reliability, and throughput barriers. This project demonstrates how a combination of essential technical capabilities can be used to establish a QR code communications system as a potentially useful approach for tactical operations.

Bluetooth data collection devices are an innovative technique for measuring travel times and speeds on roadway segments. This project developed a system capable of recording Bluetooth MAC addresses with a timestamp and determining the space mean speed of vehicles between multiple nodes. Battery powered and solar powered nodes are developed for the project. Various deployments of the nodes are utilized to determine the ideal placements and distances. The nodes are utilized in determining capacity of work zones by using travel speeds and times as surrogate measures of congestion. Nodes are also used to detect incidents based on increased Bluetooth device hit counts. Recommendations for node spacing are made for rural and urban areas.

Federal agency information systems are increasingly at risk of both intentional and unintentional supply chain compromise due to the growing sophistication of ICT and the growing speed and scale of a complex, distributed global supply chain. Federal departments and agencies currently have neither a consistent nor comprehensive way of understanding the often opaque processes and practices used to create and deliver the hardware and software products and services that it procures. This lack of understanding, visibility, traceability, and control increases the challenges associated with managing the risk of exploitation through a variety of means including counterfeit materials, malicious software, or untrustworthy products. Overall, it makes it increasingly difficult for federal departments and agencies to understand their exposure and manage the associated supply chain risks. Currently, federal departments and agencies and many private sector integrators and suppliers use varied and nonstandard practices, exacerbating the challenge.

The design of reliable SatCom systems becomes critical, especially in the Q/V and W bands in which atmospheric fades are so strong that the traditional planning approach based on fixed power margins is no longer effective either because of technological constraints and/or extremely high costs. In this scenario, smart solutions known as Fade Mitigation Techniques (FMTs) are mandatory to optimize the system or to guarantee high-availability of the system even under extreme atmospheric conditions. This, in turn, triggers the need of more complex models not only aiming at accurately and reliably predicting the attenuation caused by all atmospheric constituents (gases, clouds and hydrometeors), but also able to simulate complex systems implementing FMTs and to estimate their performance in enhancing the delivered Quality of Service (QoS). This research activity focused on the performance evaluation of SatCom systems operating in the Q/V and W bands.

To improve the efficiency of communications among unmanned systems, the research focused on the novel use of asymmetric polarized MIMO and network availability. The dissertation objective was to maintain the highest network availability for a mobile ad hoc network with heterogeneous communication capabilities. Using a hybrid dual-polarized Rayleigh fading channel model, asymmetric antenna configurations were studied in simulation for bit error rate and capacity. For a 1 x 1 configuration, polarization reciprocity was used to exploit the polarized channel knowledge, thereby maximizing received uplink power. The optimum gains to maximize uplink capacity were also derived for varying channel cross-polarization values. Larger configurations of 2 x 1 and 2 x 2 were investigated, including overlays of orthogonal space-time block coding, which improved diversity performance in the polarized channels. Extending these link results to realistic scenarios with unmanned systems, a reference point group mobility model including large-scale propagation was proposed to compute the network availability. Lastly, four extensible formation models were analyzed for their influence on network availability.

The goal of this project relates to e ective management of emergencies or disasters that impact large urban structures, such as commercial buildings, arenas or stadiums and their surrounding street networks. The project has resulted in the E ective Emergency Response and Communication(EERC) system; the system consists of a command center that represents the main control center for managing the emergency, a mobile application that runs on multiple mobile devices in the hands of responders in the eld, and an evacuation system that can run simulations of optimal evacuation patterns in the midst of dynamically changing conditions. The system employs a client-server architecture, using a PostgreSQL server and iPhone/iPod devices for the responders and command center to communicate with each other.

Communications planning is a key part of the Marine Corps operational planning process. The ability to design and analyze communication network plans efficiently and accurately has a direct impact on the ability of commanders to command and control actions on the battlefield. This thesis proposes a cloud-based application for communications planning. It describes the benefits achievable through automation, collaboration and application interoperability, and provides recommendations for development of such a system. It concludes by presenting an implementation of these recommendations via a proof of concept application.

Computing and information and communications technology (ICT) has dramatically changed how we work and live, has had profound effects on nearly every sector of society, has transformed whole industries, and is a key component of U.S. global leadership. A fundamental driver of advances in computing and ICT has been the fact that the single-processor performance has, until recently, been steadily and dramatically increasing year over years, based on a combination of architectural techniques, semiconductor advances, and software improvements. Users, developers, and innovators were able to depend on those increases, translating that performance into numerous technological innovations and creating successive generations of ever more rich and diverse products, software services, and applications that had profound effects across all sectors of society.

This research develops collection and signal processing models to produce passive SAR ground images using OFDM communication networks. The OFDM- based WiMAX network is selected as a relevant example and is evaluated as a viable source for radar ground imaging. The monostatic and bistatic phase history models for OFDM are derived and validated with experimental single dimensional data. An airborne passive collection model is defined and signal processing approaches are proposed providing practical solutions to passive SAR imaging scenarios. Finally, experimental SAR images using general OFDM and WiMAX waveforms are shown to validate the overarching signal processing concept.

This thesis explores a novel network design concept to address the data and communications needs of the Department of Defense (DoD). This thesis evaluates broadband wireless data technologies in combination with High Altitude Platform (HAP) technologies. It proposes a network design concept to serve as a model for future research and the ultimate integration of HAPs into battlefield information architectures bringing the concepts of network centric warfare ever closer to reality.

As demand for higher data-rate wireless communications increases, so will the interest in multiple-input and multiple-output (MIMO) systems. In a single transmitter, single receiver communication system, there is a fundamental limit to the data-rate capacity of the system proportional to the systems bandwidth. Since increasing the bandwidth is expensive and limited, another option is increasing the systems capacity by adding multiple antennas at the transmitter and receiver to create a MIMO communication system. With a T transmitter, R receiver MIMO communication system, TR channels are created which allow extremely high data-rates. MIMO systems are attractive because they are extremely robust as they are able to operate when encountering channels with severe attenuation also known as deep fades. MIMO systems are known for their ability to achieve extremely high data-rates created by the multiple channels while improving bit error rate (BER) through diversity.

对电信行业客户行为标签进行了研究，分析了当前数据及信息系统现状，并结合国内外数据经营基础，重点剖析了数据分散、数据安全性及对外经营模式缺失等问题，提出了数据运营系统的构建方案，以实现数据统一汇聚、统一管控，开拓了对外经营服务局面。同时，以CTNET用户鉴权计费和超人MR项目为研究案例，充分论证了建立数据运营系统的可行性，证实了对提升电信运营商数据价值的重要意义。