4th Generation of systems for mobile communications (4G) is a part of the IMT-Advanced family of standards. Within the realm of 4G IMT-Advanced, two prominent and rivaling standards have surfaced: European LTE-Advanced and the U.S.-based IEEE 802.16m. These standards mark a significant evolution in mobile communication technology, succeeding the earlier 3G (Third Generation) systems and ushering in a substantial enhancement in terms of data speed, capacity, and overall performance when compared to their predecessors

4G is engineered to operate entirely on the Internet Protocol (IP), enabling effortless integration with the broader internet and streamlining the delivery of a wide array of IP-based services and applications. Depending on the specific 4G technology and network infrastructure in use, it is capable of delivering download speeds ranging from 100 Mbps to 1 Gbps. Additionally, 4G networks excel in managing a greater number of concurrent connections and data traffic, making them particularly suited to meet the rising demands of smartphones, tablets, and various other mobile devices.

Furthermore, 4G networks are known for their reduced latency, signifying minimal delays in data transmission. This diminished latency proves critical for applications that require real-time performance, such as online gaming, video conferencing, and interactive services.