Fourth Generation is a term used for International Mobile Telecommunications Advanced, which is also known as Beyond 3G. 4G systems aim to upgrade Existing communication networks and are expected to provide a comprehensive and secure IP- based solution where facilities such as voice, data and at much higher data rates compared Provided to users on an “Anytime, Anywhere” basis and at much higher data rates compared To previous generations. The baseband techniques for 4G are OFDM , to exploit the frequency-selective channel property; MIMO to attain ultra-high spectral efficiency; and a turbo principle to minimize the required SNR at the receiver. The principal 4G technologies include: adaptive radio interface; modulation, spatial Processing including MIMO; and relaying, including fixed relay networks, and the Cooperative relaying concept, known as multi-mode protocol.
Fourth Generation is a term used for International Mobile Telecommunications Advanced, which is also known as Beyond 3G. 4G systems aim to upgrade Existing communication networks and are expected to provide a comprehensive and secure IP- based solution where facilities such as voice, data and at much higher data rates compared Provided to users on an “Anytime, Anywhere” basis and at much higher data rates compared To previous generations. The baseband techniques for 4G are OFDM , to exploit the frequency-selective channel property; MIMO to attain ultra-high spectral efficiency; and a turbo principle to minimize the required SNR at the receiver. The principal 4G technologies include: adaptive radio interface; modulation, spatial Processing including MIMO; and relaying, including fixed relay networks, and the Cooperative relaying concept, known as multi-mode protocol.
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