By Michele Kinman, Energy Harvesting Forum click to enlarge Energy harvesting is the process of capturing and accumulating byproduct energy as the energy becomes available, storing the energy for a period of time and conditioning it into a form that can be used later such as operating a microprocessor with in its limits.
By Rob McCammon, Open Kernel Labs Figure 1. Mobile Virtualization. Over the last few years, virtualization has evolved from an obscure technology to become a key enabler of enterprise server and desktop applications. More recently, virtualization has also begun to play a comparably pivotal role in embedded development and deployment.
By Andrea Bradshaw, Brightstar It has been said that at retail, your package is your brand. And, increasingly, consumers are opting for products and packaging that are green. Can you integrate these seemingly opposing ideas to create packaging that's compelling to buyers and environmentally friendly? And, can you do it without breaking the bank? The answer is, resoundingly, "Yes!" It takes some research, analysis and planning, but "going green" can not only improve your image with your customers and your relationship with Mother Nature, it can also improve your packaging quality and reduce your costs.
By Dennis Brestovansky, president and CEO of Aveso Displays A new world of printed electronic display technology is evolving, offering unlimited opportunities for mass consumer and industrial applications. New flexible, printed displays are increasingly being integrated into a variety of everyday products including credit cards, product packaging, home-health diagnostics and even in apparel to combat theft and counterfeit.
By Marwan Jabri, PhD, Dilithium Networks click to enlarge System diagram and media flow from a video content source to a handset in a 3G VT peer-machine application. 3G video-telephony is commonly used today in interactive video value-added services.
By Ram Asokan, Ixia SC-FDMA is a new technology used for uplink in LTE. This article explores this technology, its use in LTE and its extension from OFDM.
Developing the LTE uplink, especially the receiver for the base station, requires complex design approaches and a significant capability in test systems. By Tim Fowler, Cambridge Consultants Ltd. click to enlarge Figure 1. Functional test equipment.
There is great potential for ‘greater femtocells' to improve mobile coverage and capacity outside the home environment. By Rupert Baines, picoChip, Inc. Femtocells are now a commercial reality. Launches by AT&T and Vodafone, amongst others, have brought femtocells into the consumer sphere.
IPSec's growing importance in ensuring security and reliability in new networks By Asaf Shen, Discretix Inc. Internet Protocol Security (IPSec) provides security at the network layer of the protocol stack. By using IPSec, protection is offered to all IP packets regardless of the protocols and applications running in the upper layers of the protocol stack.
The LTE femtocell stands to serve as a key weapon in the mobile operator arsenal. By Todd Mersch, Continuous Computing click to enlarge Figure 1. Putting the puzzle together, integrated LTE femtocell silicon. The market is buzzing about the critical role of "small cells" in Long Term Evolution (LTE) deployments femtocells, picocells and microcells.
Leveraging highly integrated RFIC designs and high dynamic range converters helps meet the challenges of next-generation base stations. By Phillip Halford and Ed Balboni, RF Group, Analog Devices, Inc. click to enlarge Figure 1.
By Manuel Uhm and Mark Quartermain, Xilinx The baseband processing function represents a key area of product differentiation for Telecommunications Equipment Manufacturers (TEMs). However, the advent of 3.9/4G systems poses a difficult challenge to TEMs, as they struggle to evolve traditional DSP-centric channel cards to meet a new set of technical and commercial challenges.
For deployments by a single operator, wireless repeater systems offer more cost effective fiber transport costs. By Allan Evans, VP of Marketing, Samplify Systems ABI Research predicts that revenues for distributed antenna systems and in-building wireless systems will exceed $15B by 2013.
The current generation of monitors are portable heart rate sensors that have found their way into general purposes for activities such as exercise and sports. While these devices are useful for individual purposes, they do not facilitate use by a coach or manager. By Archana Yarlagadda, Cypress Semiconductor click to enlarge Figure 1.
By Vandana Lokeshwar, Newark Engineers need to consider op-amp noise in designs for an increasing variety of applications. Today's world is challenging engineers to do more with less; to create new products that will help users improve aspects such as productivity or quality of life while consuming fewer resources such as fuel, finance or time.
Hybrid Electric Vehicle (HEV) development requires collaboration and optimization across multiple engineering domains. By Saurabh Mahapatra, The MathWorks Figure 1: This simplified diagram of an HEV vehicle illustrates one possible arrangement of system elements.
An integrated single-chip RF transceiver provides the flexibility to address all aspects of the LTE standard. By Ebrahim Bushehri, Lime Microsystems click to enlarge Table 1: Comparison of data rate and channel bandwidth for wireless standards.
With recent technical advancements, MLVs can now be used throughout the growing number of modules and interfaces in under hood automotive applications. By Ron Demcko, AVX click to enlarge Figure 1. Integration Capacitor Charge Calculations.
Designing a wireless data network without fully accounting for the mix of applications, the types of client devices and number of users risks reduced performance. By Dr. Roger Skidmore, Motorola click to enlarge Figure 1.
Judicious use of the appropriate protective circuits and devices in cellular base stations can greatly improve reliability and ensure required compliance with YD5098-2005. By Teddy To, China, Littelfuse Inc. click to enlarge Figure 1.
With networks built around an infrastructure of base stations and subscriber stations like WiMAX, the size of the infrastructure and the number of deployments is a key consideration. John Schwartz, Digi International It is always interesting whenever a new standard is adopted or starts to gain some ubiquity in the marketplace.
Lower voltage IC technologies now enable ultrasound receiver chips with unprecedented high gain and low noise numbers. By Ismail Oguzman and Arash Loloee, Texas Instruments click to enlarge Figure 1. Typical block-diagram of a complete medical ultrasound system.
Failure to test base-station or mobile device receivers under realistic conditions can add significant risk in terms of support costs, churn, and operational costs. By Arashk “Ash” Mahjoubi-Amine, Spirent Communications click to enlarge Figure 1.
With the pressure on infrastructure equipment vendors to deliver quickly to market, structured, incremental and flexible test programs are essential for the development integration, verification and optimization of LTE infrastructure. By Phil Medd and Nick Carter of Aeroflex Test Solutions click to enlarge Figure 1.
Planning and designing an integrated wired/wireless network before construction begins pays big dividends later. By Ahmet Tuncay, Trapeze Networks and Paul Kish, Belden. click to enlarge Figure 1. Additional cabling from wiring closet switches to Wi-Fi mounting locations in ceilings should be accounted for in the initial cabling plan, leaving a 15- to 20-foot service loop at the end as wiggle room in case AP locations later require adjusting.