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April 2003 - In This Issue [Cover Story] Receiver Drives Base Stations To EDGE The EDGE standard is quickly becoming a key linchpin in the migration to 3G. Many factors support this statement. For starters, today's operators want and need to drive up revenue. With the high-speed data rates that it enables, EDGE is seen as one... — Cheryl Ajluni [Special Report] Wireless-Internet Access Gets Easier And More Confusing Picture this: You want to wirelessly access the Internet, but you're not sure which technology option is best. Should you use a 2G or 3G cellular network, or perhaps even a Wi-Fi hot spot? You also must figure out what kind of device is most... — John Blyler [Design Application] Eliminate IFFT From Baseband Processing Orthogonal Frequency Division Multiplexing (OFDM) has been proposed as a transmission method to support high-speed data transmission over wireless links in multipath environments. In OFDM systems, information streams are split into smaller blocks.... — Angsuman Rudra , et al. The How And Why Behind Internet-Enabled Embedded Systems The use of TCP/IP-based communication protocols is not a new development. As the burgeoning success of the Internet attests, TCP/IP usage is widespread. Until now, the use of TCP/IP—particularly over the Internet—has been the domain of... — James Dickie A Modified Constant Modulus Algorithm Enters The Scene Modern communications systems employ bandwidth-efficient modulation techniques, such as quadrature amplitude modulated (QAM). With QAM, the amplitude and phase of a sinusoidal signal are both varied to transmit digital information. Most transmission... — Maher Arar RF Design Empowers Shrinking Devices The world of wireless communication is very segmented. For example, varied communication standards exist in different regions of the world. Each of these standards is mandated either by governmental regulation, historical technological... — Dr. K. H. Lee [Product Features] Analyzer Provides Multi-Domain Support In the early rollout of 2.5G and 3G cellular networks, the biggest surprise has been the critical importance of signal characterization, analysis, and testing across multiple domains. Tektronix's newly released family of WCA200A Wireless... — John Blyler Accelerator Emphasizes Memory Interface Two important trends are changing the landscape for cellular-handset designs. First, there's the merging of application processors and Flash memory onto a combined package. These packages, which are sometimes called systems-in-a-package (SIPs),... — John Blyler [New Products] Bluetooth Device Shrinks Down Next-generation wireless devices are continuing to shrink. For the components utilized in such devices, this means that they must decrease in size as well. The LMBTA068 series BlueDevice does just that. According to its developer, Murata... — Staff Virtual USB Cable Hits The Street A new wireless-communications product line, dubbed CableFree USB, promises to create a virtual cable. This virtual cable will allow PCs, notebooks, and peripherals with a USB port to communicate wirelessly. Targeted at the installed base of legacy... — Staff Reference Design Drives Time To Market Scalability and flexibility are key factors in the constantly evolving smart-phone segment. By gaining access to comprehensive reference designs and robust support services, mobile-handset manufacturers could gain a competitive advantage. Heeding... — Staff Compact Fuel Cell Is In Development Development is underway by Neah Power Systems to create a small, compact fuel cell that is capable of powering mobile electronics products. This might include products like notebook PCs or advanced communications gear. The development will center... — Staff GSM/GPRS Radio Fits In Dime-Sized Package The market just welcomed a complete handset radio system that fits into a single, dime-sized package. It is known as the SKY74073 Single Package Radio (SPR). This solution combines all of the radio circuitry required for GSM/GPRS 900/1800 handsets... — Staff Parallel-Optics Line Gets A Boost The XTM series of parallel-optics modules has been re-energized, thanks to the addition of an electrical pre-emphasis capability. This capability is crucial for high-speed interconnect products. In such applications, pre-emphasis mitigates the... — Staff Power Dividers/Combiners Stand Out Two 12-way Wilkinson power divider/combiners have now been introduced. They are designed specifically to cover systems applications in the cellular, GSM, PCS, and ISM bands. The units are true 12-way designs. They provide high isolation and... — Staff Solutions Target Power And Display Development A group of mixed-signal ASICs has been introduced to aid the development and proliferation of next-generation portable wireless devices. These single-chip ASICs, which number seven in total, include innovative display-lighting and analog... — Staff Remote Data Collection Becomes Simplified Texas Instruments and SPIRIT-DSP have announced the availability of a flexible, low-power DSP-based solution. It is optimized for remote data collection and applications requiring a telephony coprocessor or voiceband processor. It is the first of... — Staff Controller Chip Raises The Standard With the MQ2100 Multimedia Platform Controller chip, mobile-handset manufacturers can rapidly integrate embedded cameras and color graphics into existing and new product designs. In addition, OEMs can easily incorporate high-end multimedia... — Staff [Column] The Entertainment Future Is Bright The future for wireless entertainment certainly looks bright. Yet it appears that worldwide network operators have spent too long promoting new technology for its own sake. This includes technologies like 2.5G or GPRS. As a result, these operators... — Gael Rosset JavaBots Capture Young And Old Imaginations Who says technology can't be fun? The kids in the FIRST LEGO League (FLL) competitions will surely not utter that statement. Many people consider this event to be the "Little League" of the FIRST Robotics Competition. It is a joint endeavor between... — John Blyler Catch The Assertion-Based Design Wave For today's chip designers, integrating many different functions within a wireless device poses a severe challenge. The difficulty is not so much the design part. After all, the intellectual-property (IP) blocks that implement wireless functions are... — Dino Caporossi [News] On The Wireless Front Milpitas, California Linear Technology Corp. recently introduced LTC4054—a single-cell linear Li-Ion battery charger with both on-board charge termination circuitry and power transistor. This device is... — Staff Schema Is Devised For SoC Design And IP Reuse Wireless devices are truly embedded wonders. The embedded systems within handsets and other devices propel these devices toward a smaller, more feature-rich future. To the engineers working on embedded design projects, however, their tasks don't... — Nancy Konish Reference Designs Target WLAN Wireless local-area networks (WLANs) are gaining popularity. In homes and small business, however, WLANs have not enjoyed a warm welcome. That's because they are a little too expensive and their connectivity isn't quite seamless. To promote WLAN... — Nancy Konish Video Calls Connect 3G And Corporate Networks As customers begin to embrace 2.5G and 3G networks, they also are calling for connectivity across fixed and wireless networks. To guarantee market success, the industry must therefore link 3G multimedia services with existing PC-capable... — Nancy Konish Old Cell Phones Find New Home With the disposal of waste already posing a problem in the U.S. and the world, many fear that discarded wireless devices will only add to this issue. Indeed, most people don't know what to do with their cellular phones once they've outlived their... — Nancy Konish Payphones Transform For Wi-Fi A couple of years ago, it seemed that payphones would be completely eradicated. Cell phones appeared everywhere, and all reports pointed to a day when wireless devices would eliminate payphones—and eventually landlines—altogether. Now,... — Nancy Konish Short Clips Uri Mayer, formerly president and CEO of LISATek, Inc.—which was recently acquired by CoWare, Inc. (www.CoWare.com)—was named VP, European Field Operations. Mayer will oversee CoWare's expanding European presence. The company... — Nancy Konish Wireless Hits The Road To Help Homeland Security The wireless industry is consumed by security issues. Individuals are bustling to safeguard WLAN networks. Biometrics is emerging to protect handheld devices from theft. Now, wireless is taking on homeland security to safeguard people's lives. With... — Nancy Konish Handhelds Will Alert Police To Gunshots Despite its economic woes, terrorist worries, and international conflicts, the United States cannot ignore its previously existing problems. An example is the high crime rate. Many of these numerous crimes involve guns. Yet by the time police arrive... — Nancy Konish SMS Mobile Commerce Guarantees Security In the grand wireless vision, people everywhere were predicted to communicate, e-mail, surf the Web, pay for transactions, and more on a wireless device. Originally, this scenario was hard to imagine. With cellular phones and computing devices... — Nancy Konish Calendar Of Events Embedded Systems Conference Moscone Convention Center, San Francisco, CA April 22-26, 2003 www.cmp.iconvention.com/sf NetWorld + Interop Las Vegas Convention Center, Las Vegas, NV April 27-May 2,... — Nancy Konish [Editor's Note] It's Quality Of Service Or Bust These days, the most common complaints about cell phones have to do with quality of service (QoS). Consumers want and expect to receive landline-type service on their cell phones. Dropped calls are simply no longer acceptable. One solution to this... — Cheryl Ajluni |
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