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.

关键词：通信；通信网络；海军陆战队装备；电脑程序；互操作性

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Many communication networks today follow a distributed architecture, informed by a desire for immunity to attack by WMDs. However, the 'information architecture' of these networks is based on the assumption that information at one location is not replaceable by that somewhere else. In this project we do away with this assumption, embrace the duplicable nature of information, and view communication networks as distributed data bases that must maintain and serve information in spite of attack by WMDs. Our objective is to create algorithms and mechanisms that transmit 'high-value bits at high-speed' in a scalable and attack-resilient manner.

关键词：通信；无线通信；网络结构；分布式优化；大规模杀伤性武器

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The simulation process, milestones and inputs are unknowns to first-time users of the CSSL. The Simulation Planning Guide aids in establishing expectations for both NASA and non-NASA facility customers. The potential audience for this guide includes both internal and commercial spaceflight hardware/software developers. It is intended to assist their engineering personnel in simulation planning and execution. Material covered includes a roadmap of the simulation process, roles and responsibilities of facility and user, major milestones, facility capabilities, and inputs required by the facility. Samples of deliverables, facility interfaces, and inputs necessary to define scope, cost, and schedule are included as an appendix to the guide.

关键词：通信；宇宙通信；模拟；航天器通信；系统分析

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Communication, i.e., moving data, between levels of a memory hierarchy or between parallel processors on a network, can greatly dominate the cost of computation, so algorithms that minimize communication can run much faster (and use less energy) than algorithms that do not. Motivated by this, attainable communication lower bounds were established for a variety of algorithms including matrix computations. The lower bound approach used initially for Theta(N3) matrix multiplication, and later for many other linear algebra algorithms, depended on a geometric result by Loomis and Whitney: this result bounded the volume of a 3D set (representing multiply-adds done in the inner loop of the algorithm) using the product of the areas of certain 2D projections of this set (representing the matrix entries available locally, i.e., without communication). Using a recent generalization of Loomis' and Whitney's result, we generalize this lower bound approach to a much larger class of algorithms, that may have arbitrary numbers of loops and arrays with arbitrary dimensions as long as the index expressions are a ne combinations of loop variables.

关键词：通信；并行算法；线性代数；通信下界；微分方程

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Providing long-distance non-line-of-sight control for unmanned ground robots has long been recognized as a problem, considering the nature of the required high-bandwidth radio links. In the early 2000s, the DARPA Mobile Autonomous Robot Software (MARS) program funded the Space and Naval Warfare Systems Center (SSC) Pacific to demonstrate a capability for autonomous mobile communication relaying on a number of Pioneer laboratory robots.  This effort also resulted in the development of ad hoc networking radios and software that were later leveraged in the development of a more practical and logistically simpler system, the Automatically Deployed Communication Relays (ADCR). This paper provides a summary of the evolution of the radio relay technology at SSC Pacific, and then focuses on the latest two stages, the Manually-Deployed Communication Relays and the latest effort to automate the deployment of these ruggedized and fielded relay nodes.

关键词：通信；无线电中继系统；Ad Hoc网络；无人地面车辆；遥控

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NASA has developed an experimental flight payload (referred to as the Space Communication and Navigation (SCAN) Test Bed) to investigate software defined radio (SDR) communications, networking, and navigation technologies, operationally in the space environment. The payload consists of three software defined radios each compliant to NASAs Space Telecommunications Radio System Architecture, a common software interface description standard for software defined radios. The software defined radios are new technology developments underway by NASA and industry partners launched in 2012. The payload is externally mounted to the International Space Station truss to conduct experiments representative of future mission capability. Experiment operations include in-flight reconfiguration of the SDR waveform functions and payload networking software. The flight system will communicate with NASAs orbiting satellite relay network, the Tracking and Data Relay Satellite System at both S-band and Ka-band and to any Earth-based compatible S-band ground station. The system is available for experiments by industry, academia, and other government agencies to participate in the SDR technology assessments and standards advancements.

关键词：通信；太空通信；通信卫星；无线电设备；软件工程

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Warfighting based on Commander s Intent and Mission Tactics will remain the foundation of command and control, but the information structure that supports Marine Corps tactical units will continuously undergo changes based on developments in information technology. Mobile Ad Hoc Networking is one of the information technology developments that the Marine Corps is currently studying. Mobile Ad Hoc Network s (MANETs) are infrastructureless, highly mobile communications and their multi-hop routing capabilities have the potential to reliably and robustly extend existing networks to the tactical edge. There are many challenges to MANET implementation however, including management of the dynamic physical topology, and the efficient use of limited spectral and energy resources. One platform being tested by the Marine Corps utilizes a time-division multiple access (TDMA) scheme combined with Barrage Relaying to ensure robust communications. Other schemes for MANETs employ intelligent-routing protocols. This thesis examines those protocols and identifies the parameters needed to implement a tactical MANET routing scheme. The findings of this research advance understanding of MANETs and the elements necessary to enable their use in support of tactical communications; bringing the Marine Corps closer to its goal of lightweight and efficient tactical communications.

关键词：通信；MANETs；战略通信；路由

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This paper deals with modifications of combustion equipment in order to reduce harmful flue gas emissions in a boiler MA 23. The hot water boiler MA 23 belongs to gasification boilers for dry lump wood combustion; it is intended primarily for the heating of family houses, cottages, small office buildings and other small buildings and has the maximum required heat output of 23 kW. The boiler was tested in several modes, based on the requirements of the standard EN 303-5 dealing with emission limits. A basic requirement was the implementation of technical measures described in the paper and a proposal of method of regulation of flue gas volumetric flow rate and of installation in order to keep emission levels below the required limit.

关键词：生物质能；气体排放；排放水平；热解炉

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This research has produced several important research contributions to the communications, signal processing and data fusion communities. It was shown that if the sensors know that their data is to be used to solve a specific target detection and estimation problem, they are able to determine what data is necessary to accurately solve these problems and which data which is already well described by previously observed data. Thus joint design can enable a new generation of technologies for solving important real-world problems related to large-scale networks of monitoring sensors spread over large regions.

关键词：通信；通信网络；雷达；传感器；信息优势；联合信号处理

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Given the growing reliance of industry and government on online information services such as cloud computing and data centers, efficient fault-tolerance algorithm design is of increasing importance in both industry and academia. In this dissertation, we present some of our efficient fault-tolerant algorithms for distributed systems under both point-to-point and broadcast communication models.

关键词：通信；通信网络；通信和广播系统；拜占庭故障；纠错码

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