
This lecture will give you brief journey of wireless communication with the special features.
Explore transmission fundamentals in time and frequency domains, including amplitude, frequency, and phase; bandwidth, spectrum, and Shannon capacity; and analog/digital signals with wireless media and antennas.
Explore wireless communication basics, including radio, microwave, infrared, and optical transmission, and see how mobile stations, base stations, and switching centers enable satellite, fixed, indoor wireless LAN, and mobile services.
Learn how cellular systems solve spectrum congestion by reusing a fixed set of radio channels across hexagonal cells, with base stations assigned distinct channel groups to minimize interference.
Explore fixed and dynamic channel assignment strategies and the handoff process, including thresholds, handoff margin, and mobile assisted handoff for reliable cellular service.
Explore how co-channel and adjacent-channel interference impact cellular capacity, and learn how cell planning, power control, and frequency separation mitigate interference.
Explains trunking theory, showing how a pool of channels lets many users share a limited spectrum via on-demand access or queues, and introduces traffic intensity and grade of service.
Learn how capacity in cellular systems is boosted through cell splitting, sectorized antennas, and microcell zones that reduce interference, lower transmit power, and increase channel reuse without constant handoffs.
Explore how multiplexing and multiple access techniques: FDMA, TDMA, CDMA, and SDMA, enhance wireless system capacity with duplex downlink and uplink, narrowband versus wideband, and guard band considerations.
Learn how frequency division multiple access assigns a unique frequency band to each user with guard bands to minimize adjacent-channel interference, and explore its narrowband, idle-channel waste, and cost trade-offs.
Explore how tdma divides the channel into frames and time slots, allowing multiple users to transmit or receive in nonoverlapping slots with synchronization and guard times.
Explore frequency division multiple access (FDMA), where each user receives a unique frequency band for duration of a call, with guard bands to minimize adjacent channel interference in narrowband systems.
Learn how code division multiple access uses a spreading signal and a pseudo random code word to multiplex users, increasing capacity and enabling random access and soft capacity.
Mobile phones have changed our lives during the recent four decades and will become an essential and inseparable part of human life. This course will provide how mobile communication is possible from the aspect of communication systems
The principles of wireless communication theory are covered with emphasis on the essential concept delivery. I hope students will enjoy the journey from wired communication to wireless communication through this course.
In this course students will learn the various concepts required to understand wireless communications including cellular fundamentals, modulation techniques, multiple access techniques and spread spectrum communication.
This course is for the students/professionals who are interested to understand some fundamental and essential technical concepts of wireless communications which are baseline for all generations of mobile communication.
The course is divided as following modules:
Module 1:
Background
1. History of wireless communication
2. Transmission basics
3. Fundamentals of Wireless Communication
Module 2:
Cellular Concepts
1. Introduction to Cellular Systems
2. Channel Assignment and Hand Off Strategies
3. Interference and System Capacity
4. Trunking Theory
5. Capacity Improvement
Module 3:
Multiple Access Techniques
1. Background
2. Frequency Division Multiple Access
3. Time Division Multiple Access
4. Spread Spectrum Multiple Access
5. Code Division Multiple Access
Thus, this course prepares students/professionals about the very essential concepts related to wireless communication. These concepts will be useful to learners in opting undergraduate course or advanced course in the related field.