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Dell Streak 7 4G Mobile

Dell Streak 7 4G tablet which measures just 7.87 x 4.72 x 0.49 inches is slated to hit T-Mobile stores in the coming weeks. “Dell is continuing to create the very best in entertainment, mobile and gaming experiences,” commented Steve Felice, president for Dell’s Consumer, Small and Medium Business unit. “With Streak 7 on the blazingly fast T-Mobile network, families, students and mobile professionals will gather, share, and find new ways to interact and keep in touch.”
Key Features Of Dell Streak 7 4G Tablet (T-Mobile):

• Powerful dual core 1Ghz NVIDIA Tegra 2 processor
• 7-inch WVGA (800 x 480 pixels) multi-touch screen with Gorilla Glass
• 5 megapixel rear camera, and front-facing 1.3 megapixel camera for Qik video chat
• User-friendly Dell Stage UI for easy access experience
• Compatible with Adobe Flash Player for rich Web experience
• Support Microsoft Exchange e-mail, contacts and calendar
• 16GB on-board memory combined with SD memory expansion slot
• Pre-loaded with T-Mobile TV, BrainPOP, Zinio, Blockbuster, Kindle for Android and more.

Samsung 4G Mobile

LG 4G Mobile

• 4.3 inch screen with a resolution of 480 x 800 pixels
• 1GHz snapdragon processor
• 768MB RAM
• 8MP rear camera with 1.3MP front camera
• Dual LED in the back
• Dolby and SRS surround sound
• Mobile Hotspot functionality
• DLNA enabled
• Bluetooth 2.1 upgradable to version 3.0
• 8GB internal memory
• 32GB micro SD card included
• Android 2.2 Froyo

HTC 4G Mobile

4G refers to the fourth generation of cellular wireless standards. The nomenclature of the generations generally refers to a change in the fundamental nature of the service, non-backwards compatible transmission technology and new frequency bands. 4G mobile networks use a network based on the IP address system used for the internet. Facilities such as IP telephony, ultra-broadband Internet access, gaming services and streamed multimedia are be provided to users. The CDMA spread spectrum radio technology used in 3G systems and IS-95 is abandoned and replaced by frequency-domain equalization schemes, for example OFDMA. This is combined with MIMO (i.e. multiple antennas (Multiple In Multiple Out)), dynamic channel allocation and channel-dependent scheduling. Predecessors of 4G include LTE,3GPP Long Term Evolution , WiMAX, Mobile WiMAX (IEEE 802.16e-2005) , mobile wireless broadband access (MWBA) standard , UMB (Ultra Mobile Broadband)-UMB (Formerly EV-DO Rev. C)

4G Mobile

One of the most important features in the 4G mobile networks is the domination of high-speed packet transmissions or burst traffic in the channels. The same codes used in the 2G-3G networks will be applied to future 4G mobile or wireless networks, the detection of very short bursts will be a serious problem due to their very poor partial correlation properties. Recent study has indicated that traditional multi-layer network architecture based on the OSI model may not be well suited for 4G mobile network, where transactions of short packets will be the major part of the traffic in the channels. As the packets from different mobiles carry completely different channel characteristics, the receiver should execute all necessary algorithms, such as channel estimation, interactions with all upper layers and so on, within a very short time to make the detections of each packet flawless and even to reduce the clutter of traffic.