EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 1
FASTNUCESPeshawar
Last time we talked about
Course Out Line
Today we will discuss Basic Communication
System
FASTNUCESPeshawar
Basic Communication System
Communication means transfer of some
Chapter 6: Random Processes1
Yunghsiang S. Han
Graduate Institute of Communication Engineering,
National Taipei University
Taiwan
E-mail: yshan@mail.ntpu.edu.tw
1 Modified
from the lecture notes by Prof. Mao-Ching Chiu
Y. S. Han
Random Processes
Definitio
APPENDIX
Communications questions
Amplitude modulation
Q1
A signal can be described by the following equation:
Vc(t) = 5[1 + 0.5cos2103t]cos2106t volts.
State the frequencies contained in this signal and hence calculate the bandwidth. Calculate
the total
PPP and SLIP
When your modem makes funny
noises.
(C) Herbert Haas
2005/03/11
1
PPP / SLIP
PPP
Where is PPP used
What is the task of LCP
What is the task of NCP
SLIP
Why SLIP died out
(C) Herbert Haas
2005/03/11
2
2
Introduction (1)
Goal of PPP
Convey data
44
ENGINEERING ELECTROMAGNETICS
D2.7. Find the equation of that streamline that passes through the point
4x 2
8x
ax + 2 a y ; (b) 2e5x [y(5x + 1)ax + xa y ].
P(1, 4, 2) in the field E = (a)
y
y
Ans. x 2 + 2y 2 = 33; y 2 = 15.7 + 0.4x 0.08 ln(5x + 1)
REFER
5.4 Signal Space Analysis
161
3A
00
01
A
11
10
A
3A
Fig. 5.18 M -ary PAM (M = 4).
5.3.3
M -ary PAM and Applications to Telecommunications
Baseband M -ary PAM:
More applications of M-ary PAM can be found in the following
communication systems:
Another va
Chapter 22
The Electric Field II: Continuous Charge
Distributions
13
[SSM] A uniform line charge that has a linear charge density l equal
to 3.5 nC/m is on the x axis between x = 0 and x = 5.0 m. (a) What is its total
charge? Find the electric field on t
Carnegie Mellon University
Research Showcase @ CMU
Institute for Software Research
School of Computer Science
2004
Cyclic Redundancy Code (CRC) Polynomial
Selection For Embedded Networks
Philip Koopman
Carnegie Mellon University
Tridib Chakravarty
Carnegi
Speech, music, images, and video are examples of analog signals. Each of these
signals is characterized by its bandwidth, dynamic range, and the nature of the signal.
For instance, in the case of audio and black-and-white video, the signal has just one
co
Chapter 2 Data-link layer
Problem Statement
To transmit data over physical links from one node to another or more nodes
effectively and efficiently, there is much more to do than simply modulating bit
stream into signal. Transmission impairments, such as
IST 2710 Homework: Logic Gates
Part of Assignment 8
Fill in the truth table for the circuit below. Remember to find both inputs for a gate before
you try to find the output, and to make a larger truth table to find the results in between
the individual ga
Homework #9
Digital Logic Gates
1)a) Fill out the truth table for the
following circuit.
Due Wed, 11/7/07
D
b) What do you think this circuit is
(what could it be used for)?
B
C
2) Use logic gates to construct a circuit such that it matches the following
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 15
FASTNUCESPeshawar
Last time we talked about
Basic SNR parameter, Error probability
Today we would discuss Intersymbol
interference
FASTNUCESPeshawar
Baseband Demodulation/Detection
FASTNUCE
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 21
FASTNUCESPeshawar
Last time we talked about
Impulse response and state diagram of a
convolutional encoder
FASTNUCESPeshawar
The Tree Diagram
Although the state diagram completely
characteri
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 7
FASTNUCESPeshawar
Last time we talked about
FORMATTING Analog information, sampling,
quantization
Today we would discuss Natural Sampling,
Aliasing
FASTNUCESPeshawar
Spectra for various samp
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 3
FASTNUCESPeshawar
Quiz1 in next lecture
17th Feb 2010-sectionA
18th Feb 2010-sectionB
FASTNUCESPeshawar
Quiz1-section A-time 10 mins-17 Feb
2010
Draw and Discuss Basic Communication
Systems
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 6
FASTNUCESPeshawar
Quiz2.sectionA.26feb2010.marks10.
10mins
Encode THING using 6-bit ASCII encoding
scheme and use 8-ary symbols.
FASTNUCESPeshawar
Last time we talked about
Last time we disc
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 8
FASTNUCESPeshawar
Last time we talked about
Natural Sampling, Aliasing
Today we would discuss Signal interface for a
digital system, Sources of corruption
FASTNUCESPeshawar
Signal Interface
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 2
FASTNUCESPeshawar
Last time we talked about
Basic Communication System
Today we will discuss its Examples and What
is Analog and Digital?
FASTNUCESPeshawar
Transceiver
Some devices may act a
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 4
FASTNUCESPeshawar
Last time we talked about
Why we go digital? Digital Communication
blocks
Today we would discuss, essential blocks of a
digital communication system, all the blocks in
a di
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 11
FASTNUCESPeshawar
Last time we talked about
Uniform and non uniform quantization, PCM
waveform types
Today we would discuss PCM waveform
types, PAM, correlative coding, duobinary
coding
FAS
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 9
FASTNUCESPeshawar
Last time we talked about
Signal interface for a digital system, Sources
of corruption, Sampling and Quantizing
Effects, Quantization Noise, Quantization
Saturation
Today w
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 5
FASTNUCESPeshawar
Last time we talked about
We discussed essential blocks of a digital
communication system, all the blocks in a
digital communication system, basic digital
nomenclature
Toda
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 13
FASTNUCESPeshawar
Last time we talked about
Tutorial problems
Today we would discuss Demodulate and
Detect
FASTNUCESPeshawar
Baseband Demodulation/Detection
FASTNUCESPeshawar
Signals and No
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 17
FASTNUCESPeshawar
Last time we talked about
Channel coding
Today we would discuss Syndrome Testing
FASTNUCESPeshawar
Syndrome Testing
Syndrome Testing is a technique in digital
communicatio
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 18
FASTNUCESPeshawar
Last time we talked about
Syndrome Testing
Today we would discuss decoder
implementation of error correction
FASTNUCESPeshawar
Quiz no.4 section A, 23rd April 2010
Use Gen
EE313 Digital Communications
Fall 2010
Muhammad Rashed
Lecture 20
FASTNUCESPeshawar
Quiz section B.30th April 2010
Write the orthogonal code words for 3 bit set
FASTNUCESPeshawar
Last time we talked about
convolutional code
Impulse response and state diag