Tài liệu Data Communication Principles P2 pptx

... PHYsical layer that receives data from the medium and passes it on to the data link layer as DL- PDU or data link layer protocol data unit. The data link layer strips off the data link header/trailer ... as unreliable datagram delivery. An example of a protocol using datagram switching is the Internet Protocol (IP). A network layer providing datagram service treats each packet of...

Ngày tải lên: 22/12/2013, 20:17

... Questions 3. Network and User Data 3.1. 3.2. The Network Data The Physical Layer Data 3.2.1. 3.2.2. 3.2.3. 3.2.4. 3.2.5. 3.2.6. 3.2.7. 3.2.8. Sequence of Events and Definitions Modulation of data and signals Digital ... that the electronic communication systems started as data communication systems, much of their advancement has been in the field of voice. For decades, the Publi...

Ngày tải lên: 22/12/2013, 20:17

... Gitlin, J. F. Hayes, and S. B. Weinstein, Data Communications Principles, ” New York: Plenum, 1992. [5] R. Lucky, J. Salz, and E. Weldon, Principles of Data Communication, ” New York: McGraw Hill, ... Baseband Communications 2.1 Introduction to Digital Baseband Communication In baseband communication, digital information is conveyed by means of a pulse train. Digital baseband...

Ngày tải lên: 26/01/2014, 07:20

Ngày tải lên: 12/12/2013, 09:15

Ngày tải lên: 12/12/2013, 22:15

... characteris- tics available on the product data sheet. Many performance characteristics are shown on a typical data sheet. Many manufacturers feel that the data sheet should provide as much information ... 1% or 1½%? Will highly accurate sensor data be obscured by inaccuracies in the signal conditioning or recording processes? On the other hand, many modern data acquisition syst...

Ngày tải lên: 12/12/2013, 23:15

... 18 Chapter 2: Extending Windows PowerShell The following table lists the possible value names, including data types, whether it is optional or required, and a description of each value. Name Type Optional ... addition, the snap-in class type, PSBook.PSBookChapter2MySnapIn in this case, is used as value data: E: \ PSbook \ CodeSample \ PSBook > InstallUtil PSBook-2-2.dll 3. Verify that...

Ngày tải lên: 13/12/2013, 02:16

Ngày tải lên: 13/12/2013, 05:15

... provide much more than simply a data transport service. Consider a web service. It provides a data transport service, but also a data processing service and a data presentation service. The latter ... error rate. In a connectionless service, the data does not follow a fixed routing. Instead, the data is transmitted in packets, or datagrams. Successive datagrams, travelling between...

Ngày tải lên: 14/12/2013, 23:15

... capture the entire market for himself. Once the market is his alone then his problem is Pricing Communication Networks: Economics, Technology and Modelling. Costas Courcoubetis and Richard Weber Copyright  2003 ... market. service providers to obtain positive profits from customers. Examples of switching costs in communications include the cost of changing a telephone number, an email accou...

Ngày tải lên: 14/12/2013, 23:15