4G/5G Communication Networks - G. Mani Sankar - Bog

The transition from 4G to 5G marks a significant leap in wireless communication technology. 4G, represented by Long-Term Evolution (LTE), brought about faster data speeds and enabled high-definition multimedia streaming and online gaming. Leveraging techniques like Orthogonal Frequency Division Multiplexing (OFDM) and Multiple Input Multiple Output (MIMO) antennas, 4G networks significantly improved data transmission efficiency and coverage. In contrast, 5G networks promise to revolutionize connectivity with even faster data rates, ultra-low latency, and massive device connectivity. 5G achieves these advancements through the utilization of higher-frequency radio waves, such as millimeter waves, and advanced antenna technologies like Massive MIMO. This next-generation technology facilitates groundbreaking applications like autonomous vehicles, augmented reality, and the Internet of Things (IoT), all while aiming to reduce latency to near real-time levels. However, the deployment of 5G networks presents challenges, including significant infrastructure investment, addressing privacy and security concerns, and ensuring compatibility with existing systems.