Mobile Networks: Evolution and Challenges

This lecture by the instructor covers the evolution and challenges of mobile networks, focusing on Wi-Fi and cellular technologies. The lecture delves into the impact of mobile networks on various aspects of life, such as education, business, healthcare, and more. It explores the essential role of mobile networks in providing wireless connectivity, democratizing access to information, and enabling various applications like video conferencing, remote work, and IoT devices. The lecture also discusses the need for higher data rates and more devices in modern mobile networks, highlighting the importance of bandwidth allocation and frequency usage. Additionally, the instructor explains the process of up and down conversion in transmitting signals at different frequencies and the significance of understanding the wireless channel for optimizing network performance.