4G
4G (Fourth Generation) is a cellular wireless network technology that offers faster data transfer speeds, improved network reliability, and better connectivity than its predecessor, 3G. In computing, the term 4G refers to a mobile device's ability to connect to and use this advanced cellular network for high-speed internet access on the go.
Key characteristics
High-speed mobile broadband: 4G provides broadband-style speeds, making it suitable for bandwidth-intensive activities like streaming high-definition video, online gaming, and video conferencing.
All-IP network: Unlike 3G, which used separate networks for voice and data, 4G is an all-Internet Protocol (IP) based standard. Voice calls are made using Voice over LTE (VoLTE) technology, which improves call clarity and efficiency.
Packet switching: The network exclusively uses packet switching for both voice and data, which reduces latency (network delay) and improves overall performance compared to earlier, hybrid networks.
Reduced latency: 4G significantly reduced latency compared to 3G, resulting in a more responsive experience. For gamers or those controlling devices remotely, this provides a noticeable reduction in delay.
Increased capacity: 4G towers can support a larger number of users simultaneously without compromising network performance, especially during peak times.
Enabling technologies: Key technologies that enabled 4G include Multiple Input, Multiple Output (MIMO) for enhanced signal quality and Orthogonal Frequency Division Multiplexing (OFDM) for better bandwidth utilization.
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