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Company: Wipro Technologies

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Article Title Author Company eMag Issue Article Synopsis
Home Gateway Applications and Personalities Rishi Arora Wipro Technologies

Aug 2003

 With the increased penetration of broadband and with the technological advances in home networking, there is a considerable market demand for the home gateway devices. Currently the applications such as Internet connection sharing, file/print sharing and VPN are driving the sales of Home Gateway boxes, but soon these gateway boxes will be available with Voice, Multimedia and other functionalities also.
IEEE1394 Serial bus : Firewire in the Home Pala Trinadh Wipro Technologies

Dec 2002

 The IEEE1394 serial bus is a low cost and high performance bus that interconnects consumer electronics audio video devices and PCs. The 1394 bus enables simple interconnections between devices with a single cable wire. The devices can be plugged in and out of the 1394 network while they are in powered on stage, i.e., hot pluggable. The devices get automatically detected and configured without any necessity for manual configuration. The devices can talk to each other, i.e., peer-to-peer communication, without any intervention or support of Personal Computers. The 1394a standard bus supports 100,200,400 mbps speeds and 4.5 meter cabling. Whereas the latest 1394b standard supports speeds 100,200,400,800 up to 3.2Gbs and Plastic optical cabling (POF) up to 100 meters.
VLSI implementation of OFDM modem Aseem Pandey, Shyam Ratan Agrawalla & Shrikant Manivannan Wipro Technologies

Oct 2002

 OFDM is a multi-carrier system where data bits are encoded to multiple sub-carriers and sent simultaneously in time. The result is an optimum usage of bandwidth. A set of orthogonal sub-carriers together forms an OFDM symbol. To avoid ISI due to multi-path, successive OFDM symbols are separated by guard band. This makes the OFDM system resistant to multi-path effects.

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