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The 3rd Generation (3G) wireless mobile internet networks are ready to live up to its performance in computer networking and mobile devices, which have limitation on access voice quality and only up to 2M bit/sec for data rates. The 4th Generation (4G) wireless mobile internet networks combine current existing 3G cellular networks (i.e., IPv6, OFDM, CDMA2000, WCDMA and TDS_CDMA) and Wi-Fi (i.e., Wireless LAN) networks with fixed internet to support wireless mobile internet as the same quality of service as fixed internet, which is an evolution not only to move beyond the limitations and problems of 3G, but also to enhance the quality of services, to increase the bandwidth and to reduce the cost of the resource.
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