Pub Date : 1900-01-01DOI: 10.4018/978-1-5225-8188-8.CH012
E. Sheybani
Challenges involved in space communications across wireless channels call for new approaches to radio systems. Due to the growing need for frequency change in modern wireless systems, an adaptive radio system has the highest demand. Software-defined radios (SDR) offer this type of adaptivity as well as compatibility with other standard platforms such as USRP/GNU radio. Despite limitations of this approach due to hardware components, viable modeling and simulation as well as deployable systems are possible using this platform. This chapter presents a detailed implementation procedure for a USRP/GNU radio-based SDR communication system that can be used for practical experiments as well as an academic lab in this field. In this experiment the USRP has been configured to receive signal from a local radio station using the BasicRX model daughterboard. The programmable USRP executes Python block code implemented in the GNU Radio Companion (GRC) on Ubuntu OS.
跨无线信道空间通信所面临的挑战要求采用无线电系统的新方法。由于现代无线系统对频率变化的需求日益增长，对自适应无线电系统的要求最高。软件定义无线电(SDR)提供这种类型的适应性以及与其他标准平台(如USRP/GNU无线电)的兼容性。尽管这种方法由于硬件组件的限制，但可行的建模和仿真以及可部署的系统都可以使用该平台。本章给出了一个基于USRP/GNU无线电的SDR通信系统的详细实现过程，该系统既可用于实际实验，也可用于该领域的学术实验室。在本实验中，USRP已配置为使用BasicRX模型子板接收来自本地无线电台的信号。可编程的USRP执行在Ubuntu OS上的GNU Radio Companion (GRC)中实现的Python块代码。
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Pub Date : 1900-01-01DOI: 10.4018/978-1-5225-8188-8.CH014
I. Lokshina, Barbara J. Durkin, C. Lanting
Ubiquitous sensing devices, enabled by wireless sensor network (WSN) technologies, cut across every area of modern day living, affecting individuals and businesses and offering the ability to measure and understand environmental indicators. The proliferation of these devices in a communicating-actuating network creates the internet of things (IoT). The IoT provides the tools to establish a major global data-driven ecosystem with its emphasis on big data. Now business models may focus on the provision of services (i.e., the internet of services [IoS]). These models assume the presence and development of the necessary IoT measurement and control instruments, communications infrastructure, and easy access to the data collected and information generated. Different business models may support creating revenue and value for different types of customers. This chapter contributes to the literature by considering, for the first time, knowledge-based management practices, business models, new ventures, and new business opportunities for third-party data analysis services.
{"title":"Internet of Things and Big Data-Driven Data Analysis Services for Third Parties","authors":"I. Lokshina, Barbara J. Durkin, C. Lanting","doi":"10.4018/978-1-5225-8188-8.CH014","DOIUrl":"https://doi.org/10.4018/978-1-5225-8188-8.CH014","url":null,"abstract":"Ubiquitous sensing devices, enabled by wireless sensor network (WSN) technologies, cut across every area of modern day living, affecting individuals and businesses and offering the ability to measure and understand environmental indicators. The proliferation of these devices in a communicating-actuating network creates the internet of things (IoT). The IoT provides the tools to establish a major global data-driven ecosystem with its emphasis on big data. Now business models may focus on the provision of services (i.e., the internet of services [IoS]). These models assume the presence and development of the necessary IoT measurement and control instruments, communications infrastructure, and easy access to the data collected and information generated. Different business models may support creating revenue and value for different types of customers. This chapter contributes to the literature by considering, for the first time, knowledge-based management practices, business models, new ventures, and new business opportunities for third-party data analysis services.","PeriodicalId":149489,"journal":{"name":"Strategic Innovations and Interdisciplinary Perspectives in Telecommunications and Networking","volume":"02 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130884469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.4018/978-1-5225-8188-8.CH004
Georgia-Zozeta Miliopoulou, V. Cossiavelou
This chapter examines the brand manager's point of view on content marketing and brand management in the social media. Using the filters of media gatekeeping, the authors study Greek executives' views and practices in local and multinational firms and agencies. Findings indicate that gatekeeping still prevails. The dipole between control and security on the one hand, and openness and dialog on the other, determines all decision-making processes. A standardization of practices is observed, especially around brand communities and content publishing, as well as a need for control and risk avoidance. Global brands rely on headquarter-provided content requesting approvals for any modification. Local brands tend to outsource and monitor content calendars. Most brands consider what to release rather than what not to. They maintain a narrow, campaign-oriented mindset that reflects traditional practices and have not embraced the requirements for transparency and openness that prevail in the social media environment.
{"title":"Brand Management and Media Gatekeeping","authors":"Georgia-Zozeta Miliopoulou, V. Cossiavelou","doi":"10.4018/978-1-5225-8188-8.CH004","DOIUrl":"https://doi.org/10.4018/978-1-5225-8188-8.CH004","url":null,"abstract":"This chapter examines the brand manager's point of view on content marketing and brand management in the social media. Using the filters of media gatekeeping, the authors study Greek executives' views and practices in local and multinational firms and agencies. Findings indicate that gatekeeping still prevails. The dipole between control and security on the one hand, and openness and dialog on the other, determines all decision-making processes. A standardization of practices is observed, especially around brand communities and content publishing, as well as a need for control and risk avoidance. Global brands rely on headquarter-provided content requesting approvals for any modification. Local brands tend to outsource and monitor content calendars. Most brands consider what to release rather than what not to. They maintain a narrow, campaign-oriented mindset that reflects traditional practices and have not embraced the requirements for transparency and openness that prevail in the social media environment.","PeriodicalId":149489,"journal":{"name":"Strategic Innovations and Interdisciplinary Perspectives in Telecommunications and Networking","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131519800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.4018/978-1-5225-8188-8.CH001
N. Meghanathan, Atiqur Rahman, Mahzabin Akhter
The authors investigate the use of centrality metrics as node weights to determine connected dominating sets (CDS) for a suite of 60 real-world network graphs of diverse degree distribution. They employ centrality metrics that are neighborhood-based (degree centrality [DEG] and eigenvector centrality [EVC]), shortest path-based (betweenness centrality [BWC] and closeness centrality [CLC]) as well as the local clustering coefficient complement-based degree centrality metric (LCC'DC), which is a hybrid of the neighborhood and shortest path-based categories. The authors target for minimum CDS node size (number of nodes constituting the CDS). Though both the BWC and CLC are shortest path-based centrality metrics, they observe the BWC-based CDSs to be of the smallest node size for about 60% of the real-world networks and the CLC-based CDSs to be of the largest node size for more than 40% of the real-world networks. The authors observe the computationally light LCC'DC-based CDS node size to be the same as the computationally heavy BWC-based CDS node size for about 50% of the real-world networks.
{"title":"Centrality Metrics-Based Connected Dominating Sets for Real-World Network Graphs","authors":"N. Meghanathan, Atiqur Rahman, Mahzabin Akhter","doi":"10.4018/978-1-5225-8188-8.CH001","DOIUrl":"https://doi.org/10.4018/978-1-5225-8188-8.CH001","url":null,"abstract":"The authors investigate the use of centrality metrics as node weights to determine connected dominating sets (CDS) for a suite of 60 real-world network graphs of diverse degree distribution. They employ centrality metrics that are neighborhood-based (degree centrality [DEG] and eigenvector centrality [EVC]), shortest path-based (betweenness centrality [BWC] and closeness centrality [CLC]) as well as the local clustering coefficient complement-based degree centrality metric (LCC'DC), which is a hybrid of the neighborhood and shortest path-based categories. The authors target for minimum CDS node size (number of nodes constituting the CDS). Though both the BWC and CLC are shortest path-based centrality metrics, they observe the BWC-based CDSs to be of the smallest node size for about 60% of the real-world networks and the CLC-based CDSs to be of the largest node size for more than 40% of the real-world networks. The authors observe the computationally light LCC'DC-based CDS node size to be the same as the computationally heavy BWC-based CDS node size for about 50% of the real-world networks.","PeriodicalId":149489,"journal":{"name":"Strategic Innovations and Interdisciplinary Perspectives in Telecommunications and Networking","volume":"415 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133351803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.4018/978-1-5225-8188-8.CH009
G. Javidi
The hyperspectral microwave atmospheric sounder (HyMAS), for weather and climate missions, is capable of all-weather sounding equivalent to hyperspectral infrared sounders (in which clouds decrease the accuracy of the results) in clear air with vertical resolution of approximately 1 km. This will improve both the vertical and horizontal resolutions of the atmosphere. Through the use of independent RF antennas that sample the volume of the Earth's atmosphere through various levels of frequencies, thereby producing a set of dense, spaced vertical weighting functions, hyperspectral microwave is achieved. This yields surface precipitation rate and water path retrievals for small hail, soft hail, or snow pellets, snow, rainwater, etc. with high accuracies. One of HyMAS requirements is a graphical user interface (GUI). Hyperspectral measurements allow the user to determine the Earth's temperature with vertical resolution exceeding 1km (1093.61 yards).
{"title":"Hyperspectral Microwave Atmospheric Sounder (HyMAS) Graphical User Interface Design","authors":"G. Javidi","doi":"10.4018/978-1-5225-8188-8.CH009","DOIUrl":"https://doi.org/10.4018/978-1-5225-8188-8.CH009","url":null,"abstract":"The hyperspectral microwave atmospheric sounder (HyMAS), for weather and climate missions, is capable of all-weather sounding equivalent to hyperspectral infrared sounders (in which clouds decrease the accuracy of the results) in clear air with vertical resolution of approximately 1 km. This will improve both the vertical and horizontal resolutions of the atmosphere. Through the use of independent RF antennas that sample the volume of the Earth's atmosphere through various levels of frequencies, thereby producing a set of dense, spaced vertical weighting functions, hyperspectral microwave is achieved. This yields surface precipitation rate and water path retrievals for small hail, soft hail, or snow pellets, snow, rainwater, etc. with high accuracies. One of HyMAS requirements is a graphical user interface (GUI). Hyperspectral measurements allow the user to determine the Earth's temperature with vertical resolution exceeding 1km (1093.61 yards).","PeriodicalId":149489,"journal":{"name":"Strategic Innovations and Interdisciplinary Perspectives in Telecommunications and Networking","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115286627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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