Communications
 247 results found for Communications, displaying items 1 - 20

March 1, 2010
White Paper: Fiber Optic Transceivers in Basestation Applications
Base station transceivers with greater bandwidth are in demand. Fiber optic links give cost effective, high bandwidth new capacity with more flexibility than copper links. Fiber links make system modifications and future upgrades simpler than would be possible with traditional copper links. In addition, fiber features inherent data security and superior reliability in hostile environments.  — Staff

March 1, 2010
White Paper: Integration Creates Compact CDMA RF Front End with GPS Capability
In this whitepaper, design requirements, best practice PCB layout, component selection and system design will be addressed.  — Staff

March 1, 2010
White Paper: GaAs-Based Surface Mount Wafer Scale Package MMICs for DC to 45 GHz Applications
Packaging has always been the "Achilles Heal" of extracting the maximum microwave performance out of any IC technology. The inherent parasitic capacitance and inductance associated with bond wires, lead frames, and encapsulating dielectric materials dominate the final products high frequency performance.  — Staff

February 2010
Wireless Demands Focus Designers On Integration
Integration has been a key to the advancement of wireless communications, leading to smaller devices with more functionality. Although the mobile handset is at the forefront of these trends, cost savings and time to market are among the drivers pushing for higher integration in cellular infrastructure as well. As wireless integrators strive for more functions in smaller packages, the trend in ICs continues toward higher levels of analog, digital, and...  — Nancy Friedrich

February 2010
Femtocell Reference Platform Is Under Development
GUILDFORD, ENGLAND—A flexible, high-performance reference platform for femtocell designs is being developed through a collaboration between Lime Microsystems and Percello. The platform combines Percello’s PRC6xxx baseband IC with Lime’s multiband, multi-standard RF transceiver IC, the LMS6002. It will be used to develop femtocell designs for high-data-rate UMTS/HSPA+ air interfaces. The PRC6xxx IC from Percello is a baseband processor for third-generation ...  — Paul Whytock

February 2010
Equalizer Design Raises Uplink Performance
CAMBRIDGE, ENGLAND—To improve Long Term Evolution (LTE) uplink performance, Cambridge Consultants has developed Dual-domain Uplink Equaliser for LTE (DUEL) technology. DUEL is designed as an algorithmic and digitalsignal- processing (DSP) extension to LTE base-station receiver designs. It requires no changes to handsets, as the LTE uplink supports the transfer of information from users’ terminals to the network. Although LTE promises to...  — Paul Whytock

January 2010
AT4 wireless Is First To Qualify Bluetooth Low Energy Controller
MALAGA, SPAIN — AT4 wireless, a wireless certification and testing laboratory, has announced the qualification of the first worldwide Bluetooth low-energy (dual-mode) design. The Bluetooth low-energy specification was adopted by the Bluetooth Special Interest Group (SIG; www.bluetooth.com) on Dec. 17, 2009. The product that was qualified is the BlueLink 7.0 (BL6450-L) solution from Texas Instruments, Inc....  — Dawn Hightower

January 2010
ZigBee-Based Transmissions Use Only 100 ?J Of Harvested Energy
SHEFFIELD, ENGLAND—The JN5148 controller from Jennic is able to perform multiple packet transmissions from 100 µJ of energy harvested from an electromechanical switch. The demonstration showed that only a single switch press is required to enable the JN5148 to carry out system startup and initialization, followed by a succession of packet transmissions to increase the probability of packet delivery to the receiver. According to Jennic, this product...  — Paul Whytock

November 2009
Antenna Reflector Boosts Satellite Signals
 — The Editors of Microwaves & RF

December 2009
’Tis The Season To Send Data
This holiday season, iPhones are at the top of many wish lists. People want to be able to take videos or pictures of their kids opening presents, for example, and upload them to Facebook right away. Yet as more smartphones are purchased by consumers, a problem arises: Cellular networks simply are not prepared to handle this amount of data. In the near future and beyond, this need promises headaches for carriers but opportunities for firms with solutions that raise...  — Nancy Friedrich

December 2009
China’s Wireless-Infrastructure Equipment Spending Peaks In 2009
EL SEGUNDO, CA—China’s massive spending on third-generation (3G) networks by its three mobile carriers—China Telecom, China Unicom, and China Mobile—will cause spending on wirelessinfrastructure equipment in the nation to surge by 27.7 percent. Spending will reach $6.3 billion in 2009, which marks a peak for expenditures according to iSuppli Corp. China’s three mobile carriers completed the first phase of their...  — Dawn Hightower

December 2009
WCAI Launches Effort To Unlock 3.65-GHz Band’s Potential
WASHINGTON, DC The Wireless Communications Association International (WCAI) has launched an industry-led effort to unlock the potential of the 3.65-GHz band by addressing its remaining regulatory and technical challenges. Specifically, the association formed the 3.65-GHz Working Group to develop a synchronization protocol in the band, which will promote coordination and mitigate harmful interference among operators. The working group also is tasked with...  — Dawn Hightower

December 2009
Developments Drive Innovation In Low-Energy Bluetooth And Wheelchair Communications
Silicon Samples Arrive For Low-Energy, Single-Mode Bluetooth Solutions IN TRONDHEIM, NORWAY, Nordic Semiconductor has started shipping silicon samples and development kits of the first member of its Blue Bluetooth lowenergy single-mode solution, the nRF8001, to key customers. Although the Bluetooth low-energy specification is still under development, Nordic is providing a...  — Paul Whytock

November 2009
Active RFIDs Are On The Rise
A (RFID) is responsible for an increasing percentage of the money spent in the RFID market. It will rise from 10 percent of the total RFID market this year to 24 percent in 2019, which translates into a $6.74-billion market. The term Active RFID incorporates many technologies including Real Time Locating Systems (RTLSs) and wireless (or ubiquitous) sensor networks. At the heart of such systems are ZigBee, RuBee, Ultra Wide Band (UWB), WiFi, and other...  — Dawn Hightower

November 2009
Bluetooth Low-Energy Data Transfer Takes Place
WINSTON-SALEM, NC—At ARM Techcon3 in Santa Clara, CA last month, Triad Semiconductor and Z-Focus Technology Group demonstrated the world’s first software-based, real-time Bluetooth Low Energy (BLE) data transfer. This demonstration was based on the BLE v0.9 prototyping specification. The firms wirelessly streamed real-time digitized signals from Triad’s Mocha development system to a PC display. The system consists of the Z-Focus BLE-ZTM single-mode BLE stack ...  — Dawn Hightower

October 2009
Enhanced Connectivity Drives Wireless Standards
Five or more years ago, it seemed that a new wireless standard was being proposed almost monthly. Much debate has focused on which standards would outlast the others, proving themselves to be the optimal solutions for given applications. Yet the landscape has not changed very much since then. The IEEE 802.11x standards continue to evolve to meet the needs of the wireless-local-area-network (WLAN) market. Bluetooth has cornered the wireless-headset...  — Nancy Friedrich

October 2009
Standards Are Set For Wireless Sensor Networks And Energy Harvesting
THE POTENTIALLY HUGE MARKET for wireless sensor networks (WSN) is being enabled by energy harvesters, new energy storage solutions, and ultra-low-power electronics. For many applications, the market for WSN may involve billions of sensors that could realize 20-yr. life spans with no maintenance. However, according to the report, â??Wireless Sensor Networks and Energy Harvesting Standardsâ?? by Raghu Das, CEO of IDTechEx, these systems need to be appropriately...  — Dawn Hightower

October 2009
GSMA Endorses Integrated Mobile Broadcast
LONDON, UK—The GSMA has endorsed a new Third Generation Partnership Project (3GPP) standard dubbed Integrated Mobile Broadcast (IMB). This standard will allow the group’s members to accelerate the adoption of mobile data and broadcast services worldwide. The IMB technology enables the spectrally efficient delivery of broadcast services based on techniques that are aligned with existing frequency-division-duplexing (FDD) wideband code division multiple access...  — Dawn Hightower

September 2009
WiMAX And Broadband-Wireless-Access Equipment Enjoy Strong Sales In 2008
The WiMAX ecosystem experienced a surprisingly healthy year in 2008, despite the global financial crisis, the ensuing recession, and the buzz around the 3GPP-backed Long Term Evolution (LTE) standard. Mobile WiMAX also made significant inroads, although shipments did not reach the predicted levels. A report from Maravedis titled, “WiMAX and Broadband Wireless Access Equipment Market Analysis, Trends and Forecasts,” offers detailed data and analysis of WiMAX equipment...  — Dawn Hightower

September 2009
Verizon Wireless And QUALCOMM Will Provide Advanced M2M Solutions
SAN DIEGO, CA AND BASKINGRIDGE, NJQUALCOMM, Inc. and Verizon Wireless have agreed to form a joint venture to provide machineto- machine (M2M) wireless communications and smart-services offerings across a variety of market segments. Those segments include healthcare, manufacturing, utilities, distribution, and consumer products. Capitalizing on the growth of M2M and smart services, the joint venture—yet unnamed—will be equally owned by QUALCOMM and Verizon...  — Dawn Hightower





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