William Stallings's Data and Computer Communications PDF

By William Stallings

Show description

Read Online or Download Data and Computer Communications PDF

Best structured design books

Electronic Band Structure and Its Applications - download pdf or read online

This quantity provides an up to date evaluate of theoretical and experimental tools of learning the digital band constitution. quite a few formalisms for particular calculations and plenty of info of worthy functions, relatively to alloys and semiconductors, are provided. The contributions hide the next topics: alloy part diagrams, density functionals; disordered alloys; heavy fermions; impurities in metals and semiconductors; linearize band constitution calculations; magnetism in alloys; glossy thought of alloy band constitution; momentum densities in metals and alloys; photoemission; quasi-particles and houses of semiconductors; the recursion procedure and delivery houses of crystals and quasi-crystals.

Get Data Analytics: Models and Algorithms for Intelligent Data PDF

This publication is a finished creation to the equipment and algorithms and techniques of recent facts analytics. It covers information preprocessing, visualization, correlation, regression, forecasting, type, and clustering. It presents a valid mathematical foundation, discusses benefits and downsides of alternative methods, and permits the reader to layout and enforce facts analytics recommendations for real-world functions.

Read e-book online Multimedia Information Retrieval. Theory and Techniques PDF

Novel processing and looking instruments for the administration of latest multimedia records have built. Multimedia info Retrieval (MIR) is an natural approach made of textual content Retrieval (TR); visible Retrieval (VR); Video Retrieval (VDR); and Audio Retrieval (AR) structures. in order that every one kind of electronic rfile can be analysed and searched through the weather of language acceptable to its nature, seek standards needs to be prolonged.

Extra info for Data and Computer Communications

Example text

The transport layer examines the transport protocol data unit header and, on the basis of the SAP field in the header, delivers the enclosed record to the appropriate application, in this case the file transfer module in Y. The TCP/IP Protocol Architecture Two protocol architectures have served as the basis for the development of interoperable communications standards: the TCPIIP protocol suite and the OSI reference model. TCPIIP is the most widely used interoperable architecture, and OSI has become the standard model for classifying communications functions.

Now, if we let fl = lo6 cycles/second = 1 MHz, then the bandwidth of the signal is (5 X lo6) - lo6 = 4 MHz. Note that for fi = 1 MHz, the period of the funda= 1 Fsec. 5 psec, for a data rate of 2 X lo6 = 2 Mbps. Thus, for a bandwidth of 4 Mhz, a data rate of 2 Mbps is achieved. Now suppose that we have a bandwidth of 8 MHz. 8a, but now with fi = 2 MHz. 8 Frequency components of a square wave (T = llfi). the bandwidth of the signal is (5 x 2 x lo6) - (2 x lo6) = 8 MHz. 5 Fsec. 25 Fsec for a data rate of 4 Mbps.

Now, let fl = 2 MHz. Using the same line of reasoning as before, the bandwidth of the signal in Figure 2 . 5 is ~ (3 X 2 X lo6) (2 X lo6) = 4 MHz. 5 psec. 25 psec, for a data rate of 4 Mbps. Thus, a given bandwidth can support various data rates depending on the requirements of the receiver. We can draw the following general conclusions from the above observations. In general, any digital waveform will have infinite bandwidth. If we attempt to transmit this waveform as a signal over any medium, the nature of the medium will limit the bandwidth that can be transmitted.

Download PDF sample

Data and Computer Communications by William Stallings


by Michael
4.3

Rated 4.27 of 5 – based on 17 votes