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April 2004 - In This Issue [Cover Story] ADC Takes On Cellular Base Stations Cellular base stations currently present many challenges. They remain complex in design and operation while carrying a significant price tag. Weighing heavily on this cost and complexity are the individual cellular base-station components. Among these... — Cheryl Ajluni [Special Report] Common Challenges Lurk In Application Development The development of software applications that run on mobile wireless devices is a relatively young but growing field. The creation of these applications requires a set of skills that isn't commonly found among PC application developers. Those... — John Blyler [Design Application] Wi-Fi Popularity Extends To 5 GHz In recent years, the wireless-local-area-network (WLAN) products based on the IEEE 802.11 standards have become wildly popular. In fact, products based on this technology—also known as Wi-Fi—have been listed among the most encouraging areas... — Jayne Stancavage Memory Motivates Cell-Phone Growth As cellular phones incorporate the multi-function capabilities that enable web-access and digital-camera functionality, their supporting memory subsystems grow increasingly complex. For engineers in today's cell-phone market, one of the main design... — Masashi Yokotsuka Decrypt The Keys To Wireless Security Broadband wireless networking has become a technically feasible alternative for enterprise-wide IT systems. Compared to traditional wide-area networking, it offers an increasingly flexible and cost-effective approach. Plus, the costs for the... — Scott Palmquist [Product Features] Elliptic Cryptography Strengthens Security Most on-the-go, mobile wireless users need to transmit and receive their data with a reasonable level of security. Unfortunately, early wireless security methods like WEP required a great deal of processing power. As a result, users chose to disable... — John Blyler C-Code Algorithms Infiltrate Hardware Few areas of embedded design are more challenging than the development of mobile wireless products. In this arena, designers must carefully balance overall performance issues with power consumption and time-to-market pressures. The tools that can... — John Blyler [New Products] Application Processor Brings 3D Gaming To Life Video mail and phone services are expected to become a big hit in the consumer marketplace. Meanwhile, mobile-phone users can already enjoy advanced applications like online gaming. To inspire the growth of these sophisticated applications, Renesas... — Nancy Friedrich 802.11a Antennas Populate Wi-Fi Marketplace Wireless networking has expanded and broken off into multiple markets, applications, and technologies. As a result, manufacturers must often create multiple components for the same general market. MAXRAD, for instance, just introduced more than 20... — Nancy Friedrich Single-Chip Processor Gives Cell Phones An EDGE To survive and hopefully succeed, cellular-phone designs must be able to take one platform and apply it to various networks. This dream seemed unattainable in today's pre-3G landscape. Now, however, an announcement from Intel Corporation is showing... — Nancy Friedrich Video Decoders Inspire New Class Of Products Entertainment is on its way to becoming a leading driver in the mobile marketplace. Games and cameras, for example, are already taking hold. At the same time, video waits impatiently on the horizon. Many companies are looking for ways to enable these... — Nancy Friedrich Mouse Brings 360-Degree Cursor Navigation To Handhelds For the wireless Internet to succeed, it has to do more than overcome technology limitations. The interface must change so that users can more easily navigate the web. As a possible solution to this problem, Interlink Electronics has come out with... — Nancy Friedrich Single Chip Set Supports Multiple Wi-Fi Versions Multi-standard, multi-band mobile devices are the products of the future. The IEEE 802.11 wireless local-area-network (WLAN) specification family is a prime example of this trend. Three variations of 802.11 protocols exist at the moment: a, b, and g.... — John Blyler Transceiver Boasts Bluetooth 1.2 Compliancy When original-equipment-manufacturers (OEMs) want to integrate Bluetooth into their products, they examine potential solutions for size and ease of design. The new Bluetooth radio transceiver from National Semiconductor vows to meet both of these... — Nancy Friedrich Monolithic PA Lands In GSM/GPRS Market Conventional power-amplifier (PA) modules comprise multiple die and numerous discretes. In contrast, the Si4300 from Silicon Laboratories uses only a single die on a small substrate. Aside from potentially entering the market as the smallest GSM PA... — Nancy Friedrich Get 802.11a/b/g System Testing Done By One Unit As the technology that supports wireless-local-area networks (WLANs) matures, so does the need for comprehensive testing. Multi-standard products based upon 802.11a, b, and g require measurement systems that can test all of the protocol variations.... — John Blyler Development Platform Hastens ZigBee Products The IEEE 802.15.4 standard (ZigBee) is quickly emerging. This wireless standard is already making a name for itself in personal-area networks (PANs) and the automotive, consumer, industrial, and medical applications. With its low power, low cost, and... — Nancy Friedrich NICs Give Non-Laptop Devices WLAN Access Power consumption has always been one of the biggest obstacles to Wi-Fi-based product mobility. A lot of stress has fallen on the handheld devices that combine the high-speed-access capabilities of WLAN chip sets. They've been hard-pressed to meet... — John Blyler [Column] All Wireless Cellular Devices Must Be Secured Now that cell phones and personal digital assistants (PDAs) have become such popular personal accessories, no one would ever think of banning them from the business premises. In reality, however, devices that use the cellular network may resemble... — Dennis Lee Wireless Design Should Be About System Analysis The wireless industry is eagerly adopting platform-based design methodologies for digital baseband and application chips. Typically, such platforms consist of vendor-provided processor and IP blocks. Wireless and other value-added logic is designed in... — Anssi Haverinen [News] Wireless Show Savors Success This year's Wireless Systems Design Conference & Expo was reinvigorated by a new venue. Attendees and other conference-goers got to enjoy balmy weather, the beautiful San Diego bay, and access to some of the industry's biggest movers and shakers.... — John Blyler , et al. Sweden Becomes Global 3G Test Center Sweden has been at the forefront of wireless technologies for some time. Now, the country is opening its doors to U.S. and international companies that want to test their 3G-related technologies, products, and services. Sweden boasts virtually... — Nancy Friedrich Test Sets Gain Bluetooth Approval Test instrumentation must constantly validate itself against changing standards. Such validation is crucial to developers, who want to be confident in their products before submitting them for qualification testing. For developers in the Bluetooth... — Nancy Friedrich WLANs Get Boost From Multimedia Applications Wireless home-entertainment systems hold the promise of mass appeal for consumers. They also flaunt the possibility of large revenue streams for WLAN equipment vendors. Yet this potentially huge market has yet to be realized. One issue is limited... — John Blyler Want Fries With Your Wi-Fi? Look out, Starbucks! McDonald's is going Wi-Fi in a global way. British Telecom (BT) has announced that it will install hot spots in over 500 McDonald's restaurants in Britain. Referred to as Openzone service, this venture is all part of BT's wireless... — John Blyler Success In San Diego Encourages Wireless Rollout The success of Wi-Fi networks in the U.S. hasn't halted the cellular carriers' march toward 3G high-speed connectivity. In fact, the commercial deployments of CDMA2000 1xEV-DO in San Diego and Washington, D.C. have bolstered Verizon Wireless' plans... — John Blyler Wi-Fi Spreads Everywhere But China While Wi-Fi-enabled networks and devices may have taken much of the world by storm, China remains unaffected. In fact, the Chinese government recently announced that only its version of the IEEE 802.11 standard will be allowed in China. Furthermore,... — John Blyler Short Clips National Semiconductor Corp. announced its Amplifiers Made Simple tool. The tool lets users select from standard topologies and enter system requirements. It then searches among National's products to recommend the most appropriate op amps for... — Nancy Friedrich [Editor's Note] Cell-Phone Market Forges New Path Oftentimes, I am asked to explain the food chain of the cellular-phone market. Let me make this simple. Consumers are attracted by cellular-phone service. The varieties of available services are made possible by cell-phone functionality.... — Cheryl Ajluni [Around the World] Snapshots ACG Identification GmbH (www.acg-id.net) inaugurated the SmartWorldAcademy, the new vendor-independent training and consultancy center for state-of-the-art smart-card applications (SEE PHOTO). The... — Nancy Friedrich [On The Wireless Front] On The Wireless Front Chelmsford, Massachusetts Hittite Microwave Corp. now offers four high-IP3, GaAs MMIC low-noise amplifiers (LNAs). These products are ideal for receiver applications in wireless base stations. Each pHEMT LNA... — Cheryl Ajluni |
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