Protocol stacks are Achilles heel of net security
by
Steve Ledford and Michael Ward, LVL7 Systems, Inc.
Today's networks are vulnerable to attack from protocol tampering, putting the Internet as well as corporate intranets at risk. The key to preventing these attacks is to understand the weak points of the protocols that power them.
Software Radio Closes in on Handsets
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By Jose Fridman, Doug Grant and Zoran Zvonar, Analog Devices, Inc.
In wireless communications, the desire to offer wide-area mobility for
data-centric applications has created a need for new standards under the 3G
umbrella. Unfortunately, the systems chosen for 3G require higher channel
bandwidth and more complex modulation schemes than the 2G variety. Backward
compatibility is difficult to achieve with the same hardware.
Analyzing ADC Noise Impacts on Wireless System Performance
Today's Feature : Archive
Overcoming Static Timing Issues in Low-Power 3G Chips
by
Stewart Shankel and Kaijian Shi, Synopsys Professional Services; and, James SW. Song, Ashwin Rao, Satyendra R.P.Raju Datla, and Yuanqiao Zheng, Texas Instruments Inc
The power issues encountered by today's mobile phone manufacturers is well documented. Next-generation phones, designers must squeeze every microamp of current out of their chip architectures, but the use of power reducing design techniques could create unusual timing configurations which complicate static timing analysis (STA), a vital step in any chip design. This article looks at the STA issues faced by today's low-power 3G chip designers.
Analyzing ADC Noise Impacts on Wireless System Performance
by
Brad Brannon, Analog Devices, Inc
Noise generated from an ADC can have a big impact on channel performance and, as the number of ADCs in a wireless system increase, designers must effectively know what impact this noise will have. This article will help designers understand techniques for determining the impact of noise on a wireless base station design.
Are Input Devices Ready for 2.4 GHz?
Technical Notes : Archive