《Data Communication Networking》
Course Classification(Required Major Course
Course Credit( 4
Total of Course Hours: 60
Lectures: 44 Hours, Laboratory Applications: 16 Hours
Data Communication Networking may be the fastest growing technologies in our culture today. One of the ramifications of that growth is a dramatic increase in the number of professions where an understanding of these technologies is essential for success-and a proportionate increase in the number and types of students taking courses to learn about them.
Today students wanting to understand the concepts and mechanisms underlying telecommunications and networking come from a variety of academic and professional backgrounds. To be useful, the course on data communication and networking must be accessible to students without technical backgrounds while still providing substance comprehensive enough to challenge more experienced readers. This course is prepared for this new mix of students in mind.
Know the following contents(Network Models, Data and Signal, Transmission Media Data Link Control ,Transmission Media, Wire LANs(Ethernet , Network Layer(Logical
Addressing ,Process-to-Process Delivery(UDP！TCP
On successful completion of the Course, students should predominate the following
contents: Transmission Media, Network Layer(Logical Addressing
Introduction to data communications
. Data communication is the transfer of data from one device to another
via some form of transmission medium.
. A data communication system must transmit data to the correct destination in a system must transmit data to the correct destination in an accurate and timely manner.
. The five basic components of a data communication system are the message; the components of a data communication system are the message, the sender, the receiver, the medium, and the protocol.
. Networks allow shared access to information devices.
. Networks use distributed processing, in which a task is divided among multiple processing, in which a task is divided among multiple computers. . Networks are judged by their performance, reliability, and security. . A protocol is a set of rules that govern data communication; the key elements of a protocol are syntax, semantics, and timing. . Standards are necessary to ensure that products from different manufacturers can work together as expected.
. The ISO, ITU-T ANSI, IEEE, EIA, and Bellcore are some of the organizations involved in standards creation.
. Forums consist of representatives from corporations that test. Evaluate and standardize new technologies.
1.4 PROTOCOLSAND STANDARDS
第二章 BASIC CONCEPTS
Five general concepts provide the basis for this relationship. 1. Line configuration
3. Transmission mode
4. Categories of networks
. A line configuration defines the relationship of communication devices to a communications pathway.
. Topology refers to the physical or logical arrangement of a network.
Devices may be arranged in a mesh, star, tree, bus, ring, or hybrid
. Communication between two devices can occur in one of three transmission
modes: simplex, half-duplex, or full-duplex.
. LAN, MAN, WAN, and Internet
2.2 THEOSI MODEL
2.3 LAYERSIN THEOSI MODEL 2.4 TCP/IPPROTOCOL SUITE 2.5 ADDRESSING
To be transmitted, information must be transformed into
. Information must be transformed into electromagnetic signals prior to
transmission across a network.
第一节 ANALOG AND DIGITAL
第二节 APERIODIC AND PERIODIC SIGNALS Periodic Signals
第三节 ANALOG SIGNALS
Simple Analog Signals
Frequency Spectrum and Bandwidth
第四节 DIGITAL SIGNALS
Amplitude, Period, and Phase
Decomposition of a Digital Signal
Medium Bandwidth and Significant Bandwidth
Medium Bandwidth and Data Rate: Channel Capacity Use of Analog Signals to Transmit Digital Data 第五节 MATHEMATICAL APPROACH (OPTIONAL)
第9章 TRANSMISSION MEDIA
Electromagnetic signals can travel through a vacuum, through air, or
other transmission media.
. Signals travel from transmitter to receiver via a path. This path, called
the medium, can be guided or unguided.
. A guided medium is contained within physical boundaries, while an unguided medium is boundless.
. The most popular types of guided media are the following: a. Twisted-pair cable
b. Coaxial cable
c. Optical fiber
第一节 GUIDED MEDIA
Twisted Pair Cable
第二节 UNGUIDED MEDIA
Radio Frequency Allocation
Propagation of Radio waves
Multiplexing is the set of techniques that allows the simultaneous transmission multiple signals across a single data link. [教学重点与难点]
. Multiplexing is the simultaneous transmission of multiple signals across a single data link.
. Two types of multiplexing are FDM and TDM.
第一节 MANY TO ONE/ONE TO MANY
第二节 TYPES OF MULTIPLEXING
第三节 MULTIPLEXING APPLICATION
第四节 THE TELEPHONE SYSTEM
Common Carrier Services and Hierarchies Analog Services
第十章 DATA LINK CONTROL
Communication requires at least two devices working together, one to send and one to receiver. Even such a basic arrangement requires a great
deal of coordination for an intelligible exchange to occur.
. The data link layer has three main functions: a. Line discipline
b. Flow control
c. Error control
. Line discipline establishes the status of a device on a link.
. ENQ/ACK is a line discipline method used in point-to-point connections.
第一节 LINE DISCIPLINE
第二节 FLOW CONTROL
第三节 ERROR CONTROL
Automatic Repeat Request？ARQ，
Sliding Window ARQ