Incremental Improvements Define The 2012 Mobile World Congress |
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Louis E. Frenzel, Editor in Chief
The usual players all showed up at this year’s Mobile World Congress in Barcelona with lots of improved devices, but no real game-changing breakthroughs... |
picoChip and Wintegra Form Partnership
EPC Data Sharing Highlights RFID Collaboration
OPNET Launches WiMAX Model Development Consortium
2006 Will Be a Critical Year for Broadband Wireless Technologies
Agilent Technologies Joins ZigBee Alliance
Alereon Secures Series B Funding
Aperto Networks Introduces Indoor Self-install WiMAX Subscriber Equipment
So, Who Needs ZigBee?
We're beginning to hear more and more about this wireless technology called ZigBee. We already have Bluetooth- and Wi-Fi-enabled devices, and WiMAX and Wireless USB proliferation are at the doorstep. Who needs another wireless standard?...
Changes in Base Station Backhaul Drive New Sync Solutions
As more mobile network operators deploy high-speed data services using IP backhaul, the need for stable and accurate frequency reference becomes more critical. This need is particularly apparent for applications such as successful hand-offs between base stations and the transport of real-time services....
The challenges of testing MIMO
This article focuses on demystifying physical layer issues with multiple input multiple output (MIMO) technology, and presents ways of improving MIMO performance....
Phase-Noise Profiles Aid System Testing
Engineers normally try to minimize phase noise, but for test purposes, they sometimes worsen the phase noise intentionally. The deliberate introduction of phase noise aids in testing a system's tolerance for phase noise or jitter....
OFDM or OFDMA?
IEEE 802.16d (fixed service) uses Orthogonal Frequency Division Multiplexing (OFDM). IEEE 802.16e (mobile) uses Orthogonal Frequency Division Multiple Access (OFDMA). So, what’s the difference between the two, and why is there a difference?...
DualPath Architecture Blends Optical Wireless and RF Into High Bandwidth, High Availability Outdoor Point-to-Point Solutions
Today, the use of wireless technologies for connecting buildings, campuses and remote locations rapidly and cost-effectively has become commonplace on a global scale. ...
A general measurement technique for determining RF immunity
This article describes a generalized technique to measure the RF immunity of a circuit. It defines a standard and structured test methodology aimed at establishing adequate repeatability of the test results for qualitative analysis....
Improving amplifier's efficiency using a Linearizer in Conjunction with Adaptive Bias Modulation
By combining the benefits of a linearizer with adaptive bias techniques, an amplifier’s efficiency can be significantly improved over a wide range of RF powers....
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