EE5360 Lecture 6
Error and flow control
The data link layer needs to pack bits into frames, so that each
frame is distinguishable from another.
Variable-size frame used in local area networks,
Lecture 1 (01/26/2015)
Brief introduction of Data communication and
Overview of network models and protocols
Note: No Laptop and cell phone activity during
1-1 DATA COMMUNICATIONS
EE5360 Lecture 5
Midterm Exam on March 16, 2015
ROOM NO:NH 100 TIME:7 to 9 pm
Syllabus Lecture 1 to Lecture 5
Closed book and closed notes.
One page of cheat sheet (A4 paper), both sides.
Bring your own calculator.
Process to process delivery
The transport layer is responsible for
Figure 23.1 Types of data deliveries
Figure 23.2 Port numbers
Unicast routing protocols:
BGP and AS
Address mapping(ARP, RARP)
Advantage of IPv6
Larger address space 128 bits against 32 bits.
Better header format simplifies and speed up routing process.
Lecture 7 spring 2015
Wired LANs: Ethernet
13-1 IEEE STANDARDS
IEEE 802 contains set of protocols that are used in
LAN networks. For example, IEEE 802.3 is
Figure 13.1 IEEE standard for LANs
Topics for today:
periodic, nonperiodic, simple and composite Wavelength, freq,phase
Time and Freq domian
Approx by analog
Impairments(noise, distortion and attenuation)
A computer network is designed to send
information from one point to another. For
transmission we need to convert data to signal
Digital to digital conversion
Analog to digital conversion
4-1 DIGITAL-TO-DIGITAL CON
EE5360 Lecture 4
Bandwidth Utilization: FDM, TDM and WDM and
Switching: Circuit switching, virtual circuit switching
and packet switching.
Delay, efficiency, structure and function.
Bandwidth utilization is the wise use of