Introduction
The digital communications laboratory aims to practically design and to implement flexible and reliable communication systems under software-defined radio (SDR) technology. Each semester, all students learn how to employ different programming and designing tools such as GNU radio companion (GRC) and MATLAB to implement their lab projects.
Syllabus
The details of the laboratory syllabus are as follows
| Chapter | Title | Details |
| One | Introduction and Background | a. An introduction to communication systems b. Different communication media c. Communications systems design challenges d. Overview of GNU Radio software e. Overview of software-defined radio modules and dongles |
| Two | Analog Modulations and Demodulations | a. Amplitude modulations and demodulations: AM-DSB-SC, AM-DSB-TC (conventional AM), AM-SSB, and AM-VSB b. Angle modulations and demodulations: Conventional FM, and conventional PM c. Analog phased-lock loop (APLL) |
| Three | Principles of Digital Data Transmission | a. Linear modulation schemes without memory: ASK, PSK, and QAM b. Nonlinear modulation schemes without memory: FSK c. Linear modulation schemes with memory: OQPSK d. Nonlinear modulation schemes with memory: CPM, CPFSK, and MSK e. Pulse shaping filters: Rectangular, raised cosine, and root raised cosine f. Channel coding/decoding techniques |
| Four | Principles of Digital Data Reception | a. Optimal detection techniques for optimal linear demodulation without memory: ASK, PSK, and QAM b. Optimal detection techniques for nonlinear demodulation without memory: FSK c. Optimal detection techniques for linear demodulation with memory: OQPSK d. Optimal detection techniques for nonlinear demodulation with memory: CPM, CPFSK, and MSK e. Equalization techniques: Zero-forcing, MMSE, and adaptive equalization f. Symbol timing-extraction g. Carrier phase-detection h. Digital phased-lock loop (DPLL) i. Costas loop j. Performance analysis of digital communication systems: BER, and eye diagram |
| Five | Multicarrier Digital Communications | Overview of multicarrier modulation: OFDM/OFDMA |
| Six | Spread Spectrum Digital Communications | Overview of direct sequence modulation schemes: DSSS, and FHSS |
| Seven | Multiuser Communication Systems | a. Overview of fixed contention-free multiple access protocols: TDMA, FDMA, OFDMA, SDMA, and CDMA b. Overview of dynamic contention-free multiple access protocols: Poll-based, and token-ring-based c. Overview of contention-based multiple access protocols: ALOHA, slotted ALOHA, CSMA, CSMA/CD, CSMA/CA, and reservation-based (reservation ALOHA and bit-map) d. Overview of hybrid multiple access protocols: Scheduling |
| Eight | Case Study of Indoor and Outdoor Wireless Technologies | a. The IEEE82.11a wireless LAN standard b. The long-term evolution (LTE) standard |
Announcement:
For those who have attended the laboratory in autumn 2020, please connect to the virtual platform (Posted on Sep 17, 2020)
Virtual Platform
The virtual platform of the laboratory has been created under the Slack.
To begin with, watch the tutorial video as
Lab Instructors
Lab Teams
Team A: H. Akhlaghi and A. H. Aghaei
Team B: O. Razzaghi and H. Mirtaheri
Team C: F. Z. Safaeipour and K. Ghodsifar
Team D: A. Najafi and B. Akbari
Team E: S. Khavari and M. J. Zare
Team F: M. Mehrdad Asadi and Omid Jafaei
Other teams are individually distributed
