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Path to 4G wireless networks

Mobile communication plays a significant role in telecommunications industry. Next new generation mobile technology, fourth generation (4G), promises the full mobility with high speed data rates. Although there is no formal definition, two possible technologies are expected to cover the requirements for 4G; LTE Advanced and 802.16m or WiMAX 2. In this paper, we aim to introduce the global wireless technologies illustrated in Figure 1 and share the operative perspective for coming 4G.