Download Review_midterm1 - Missouri State University

Review Materials for Midterm1 of csc 490/690
It will be on October 18th. Chapter 1, 2, 3, 4, 5, and chapter 6.1, 6.2 are covered in
midterm1.
Topics:
Chapter 1: Introduction
Just reading, no knowledge point is required in this chapter
Chapter 2 Transmission Fundamentals
The difference between an analog and a digital signal
The difference between analog data and digital data
The difference between analog transmission and digital transmission
What are three important characteristics of a periodic signal?
What is wavelength?
What is relationship between wavelength and frequency?
Any electromagnetic signal can be constructed by adding together enough sinusoidal
signals, each with the appropriate amplitude, frequency, and phase.
Channel capacity
Nyquist Bandwidth
Shannon Capacity Formula
Multiplexing: FDM and TDM
Chapter 3 Communication networks
Differentiate between WANs and LANs
The principles of circuit switching technique.
The principles of packet switching technique
Comparing circuit switching and packet switching.
Distinguish datagram packet switching and virtual circuit switching, compare their
advantages and disadvantages
How ATM works
Chapter 4 Protocols and the TCP/IP suite
What is a protocol?
What is a protocol data unit (PDU)?
The TCP/IP protocol architecture (five layers)
What is the advantage of the layered network architecture.
What is the router? What is the bridge?
How TCP/IP operates?
Know seven layers in OSI model
Chapter 5: antennas and propagation
Radiation patterns of Antennas
Know how to calculate antenna gain
Line-of-sight propagation, how to calculate optical line of sight
What are the most significant impairments during LOS wireless transmission?
Free space Loss
Noise: thermal noise
The expression Eb/N0
Multipath Propagation. Three propagation mechanisms.
The effects of multipath propagation.
Having some rough ideas about error compensation mechanisms
Chapter 6: signal encoding techniques
Digital data, analog signals
ASK
BFSK
MFSK, some related terms
BPSK
DPSK
QPSK
MPSK, the relationship between modulation rate and data rate
Bandwidth efficiency for all these modulation techniques.
Error performances of these modulation techniques.
Rough ideas about Minimum-shift keying and Quadrature amplitude modulation.
The types of problems in midterm are like review questions and problems after each
chapter.