|Aim of Subject:
To further develop the fundamental knowledge of communications theories
and their applications in digital communications.
To expose the students to information theory and coding techniques.
To further understand antenna theory and radio propagation.
|Learning Outcome of Subject:
At the completion of the subject, students should be able to:
- apply the basic concepts in information theory to communication systems.
- analyse signals using Fourier analysis and Fourier transform.
- define the conditions for distortionless signal transmission.
- discuss the mechanisms causing intersymbol interference and channel fading.
- discuss different types of pulse modulation techniques implemented in communication systems.
- design simple signal multiplexers.
- differentiate ASK, FSK, PSK, DPSK, MSK, M-ary modulation for digital data transmission.
- draw the transceiver structure for various modulation schemes.
- design matched filter receiver for different pulse shapes.
- analyse the performance of digital communication systems.
- undertake, under supervision, laboratory experiments on channel effect and line coding
- Ability to acquire and apply fundamental principles of science and engineering(10%)
- Capability to communicate effectively(5%)
- Acquisition of technical competence in specialised areas of engineering discipline(60%)
- Ability to identify, formulate and model problems and find engineering solutions based on a systems approach(10%)
- Ability to conduct investigation & research on engineering problems in a chosen fields of study(5%)
- Understanding of the importance of sustainability and cost-effectiveness in design and development of engineering solutions(5%)
- Ability to work independently as well as with others in a team(5%)
- Lab Experiments
- Work in group of 2,
Lab report writing,
Oral assessment at the end of lab???
- Tutorial / Assignment - Group assignment,
Focus group discussion at tutorial,
To enhance understanding of basic concepts in lecture
- Test Quiz - Written exam(15%)
- Final Exam
- Written exam(60%)
|Teaching and Learning Activities:
||51 hours (42hr lectures, 3hr tutorials and 6hr laboratory experiments)
||ETM3046: Communications I
- B.P Lathi, "Modern Digital and Analog Communication Systems", Oxford University Press., 1998 (Textbook)
- Simon Haykin, “Communication Systems”, John Wiley & Sons., 2001 (Textbook)
- M. Schwartz, "Information Transmission, Modulation and Noise", Mc-Graw Hill.,1990
- Taub & Schilling, "Principles of Communication Systems", Mc-Graw Hill., 1987
- Roger L. Freeman, “Telecommunication Transmission Handbook”, John Wiley & sons., 1998
- R.E. Ziemar et al, “Principles of Communications”, John Wiley & Sons., 2008
- J. Beasley & G.M. Miller, ”Modern Electronic Communication”, PH., 2007
Review of Fourier analysis, Fourier transform of pulses; characteristics
of distortionless signal transmission; signal distortion over bandlimited
channel, non-linear channel, multipath propagation channel, fading channel
and additive white gaussian noise channel
Pulse amplitude modulation, Pulse width modulation, Pulse position
Digitization of Speech Signals
Sampling theorem, sample-and-hold, time-division multiplexing, Pulse
code modulation (PCM), quantization noise, companding, Differential PCM,
Delta modulation, overload noise, Adaptive delta modulation.
Baseband Data Transmission and Digital Modulation Techniques
Line coding, Intersymbol interference, Nyquist waveshaping, eye pattern,
adaptive equalization. Transmission over bandpass channel. ASK, FSK, PSK,
DPSK, M-ary modulation, Continuous phase FSK, MSK.
Performance of Digital Communication Systems
Statistical properties of noise and random signals. Gaussian and Laplacian
distribution, Gaussian noise, error function, probability of error calculation,
error rates in binary and M-ary transmission, Error analysis of PCM repeater
systems. Narrowband noise, Rayleigh distribution and fading, Rician distribution,
Matched filter Receiver.
1. Channel Effect (CBT)
2. Line Coding (CBT)