This thesis starts with a general introduction to power-line communication. Then an existing application, communicating on a low-voltage grid, is investigated in order to obtain some knowledge of how the power line acts as a communication channel. Mời các bạn cùng tìm hiểu để nắm bắt nội dung thông tin tài liệu.
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Linear Predictive Detection for Power Line Communications Impaired by Colored Noise
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Resource Allocation with Adaptive Spread Spectrum OFDM Using 2D Spreading for Power Line Communications
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Wideband Impulse Modulation and Receiver Algorithms for Multiuser Power Line Communications
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Editorial Advanced Signal Processing and Computational Intelligence Techniques for Power Line Communications
For example, communicating between two PCs via a telephone line (connected between subscriber's
home and local office, then between local offices, and finally between local office and another
subscriber's home). The telephone line is an analog system. That means it can not be used for
digital transmission. If we try to transmit digital signals over the analog system, our bit rate or
bandwidth will be limited to a minimum. On a 4 kHz analog band limited system we can only
transmit at a maximum rate of roughly 1 kHz. Because a 1 kHz digital signal needs a bandwidth
In parallel transmission all bits in a single character are transmitted simultaneously.
Data travels in parallel (simultaneously) within a PC over the data bus (bundle of data lines).
Similarly we can transmit data between two PCs in parallel.
That is all data lines (normally 8) from one PC are connected to the other PC.
Parallel transmission is primarily limited to transmission of data within a computer, between
computers and between a computer and a printer.
It is fast compared to serial transmission but limited to shorter distances. ...
This paper reviews the sources of attenuation, noise and distortion encountered when communicating over AC power wiring. Various technologies which have been used to address these challenges, such as spread spectrum and digital signal processing, are then examined in light of the known channel conditions. Mời các bạn cùng tìm hiểu và tham khảo nội dung thông tin tài liệu.
Chapter 12 - Building résumés. In this chapter, students will be able to understand: Prepare a detailed time line for your job search, conduct an effective job search, prepare a résumé that makes you look attractive to employers, deal with common difficulties that arise during job searches, handle the online portion of job searches, keep your résumé honest.
In this paper we present an API for programmatic access to BabelNet – a wide-coverage multilingual lexical knowledge base – and multilingual knowledge-rich Word Sense Disambiguation (WSD). Our aim is to provide the research community with easy-to-use tools to perform multilingual lexical semantic analysis and foster further research in this direction.
A computerized conference (CC) is a form of co~znunication in which participants type into and read frc~ a computer terminal. The participants may be on line at the same time--termed a "synchrononous" conference, or may interact anynchronous~. The conversation is stored and mediated by the computer.
It is easy to think about online community from the technical point of view. Of course Internet access and the appropriate software are critical. But there are many more factors that influence the success of an online community. Most of them are non-technical, but often less apparent. Think of an iceberg. Only a small part shows above the water. In online communities: • the tools and technology are the top of the iceberg; and • the social/cultural, and organizational/environmental factors are the bigger, unseen piece “below the visible water line...
In this chapter, we show how the virtual-circuit approach can be used in wide-area networks. Two common WAN technologies use virtual-circuit switching. Frame Relay is a relatively high-speed protocol that can provide some services not available in other WAN technologies such as DSL, cable TV, and T lines. ATM, as a high-speed protocol, can be the superhighway of communication when it deploys physical layer carriers such as SONET.
TASK ONE is a report based on some graphic information provided on the
question paper. With few exceptions, the graphic information will come in
one of five forms – a line graph, bar graph, pie chart, table or diagram
illustrating a process. You are required to describe the information or the
process in a report of 150 words. This task should be completed in 20
minutes. It is important that you are familiar with the language appropriate
to report writing generally and to each of the five types of report....
Continuing the successful Scholastic "100 Words"line of exciting new language arts workbooks, this product focuses on 100 essential words kids need to know by 4th grade. Colorful art and photographs illustrate the 256 pages of lively activities, including reading and writing practice, comprehension, critical thinking exercises and word puzzles. Includes special dictionary pages and dictionary skill tips and colorful bookmarks with vocabulary-building tips.
Công nghệ truyền thông trên đường dây điện lực PLC (Power Line Communication) mở ra hướng phát triển mới trong lĩnh vực công nghệ thông tin và truyền thông. Trước đó, con người đã có thể tận dụng đường dây tải điện để làm các ứng dụng đơn giản như truyền các tín hiệu đo lường, giám sát, điều khiển.
Asymmetric Digtal Subscriber Line (ADSL) use is one of the general Digital Subscriber Line (xDSL)
techniques. While it has been around in the laboratory for about ten years, this particular technique has
since shifted to the special evaluation site to the beginnings of consumer access. By the time this book is
available, some mass provision of ADSL to the general consumer market will be available.