Image

Tablet Terminal Enables IEEE 802.11bg-Based Communication in TV Bands

Sept. 19, 2013
A portable-size tablet terminal enables IEEE 802.11bg-based radio communication to ease traffic demands.

With the growth of smartphone and tablet usage, frequency resources are increasingly falling short of demand. An alternative solution may have emerged in TV white spaces. For use in the 470-to-710-MHz TV bands, for example, a new portable-sized tablet terminal enables IEEE 802.11bg-based radio communication. The goal of the terminal, which was introduced by the National Institute of Information and Communications Technology (NICT), is to support the increase of communications traffic.

NICT’s Android tablet terminal is based on an off-the-shelf terminal and frequency converter, which also were developed by the organization to utilize TV white spaces. The terminal provides an interface in which a network manager can automatically select the optimal frequency according to data traffic in the area. Other functions include the ability to display the white-space availability of each channel and the terminal location on a map by acquiring information on TV broadcasters (primary users) from the white-space database. A power-control function uses location and time to show the different limitations of output power.

Operating on a wide frequency range, TV white spaces avoid interference with TV broadcasts while providing fixed-point and mobile communications. Because that frequency range is lower than existing WiFi and cellular bands, however, it has previously been difficult to miniaturize necessary components and circuits for use in portable devices.

About the Author

Iliza Sokol | Associate Digital Editor

Iliza joined the Penton Media group in 2013 after graduating from the Fashion Institute of Technology with a BS in Advertising and Marketing Communications. Prior to joining the staff, she worked at NYLON Magazine and a ghostwriting firm based in New York.

Sponsored Recommendations

Wideband MMIC LNA with Bypass

June 6, 2024
Mini-Circuits’ TSY-83LN+ wideband, MMIC LNA incorporates a bypass mode feature to extend system dynamic range. This model operates from 0.4 to 8 GHz and achieves an industry leading...

Expanded Thin-Film Filter Selection

June 6, 2024
Mini-Circuits has expanded our line of thin-film filter topologies to address a wider variety of applications and requirements. Low pass and band pass architectures are available...

Mini-Circuits CEO Jin Bains Presents: The RF Engine of the 21st Century

June 6, 2024
In case you missed Jin Bains' inspiring keynote talk at the inaugural IEEE MTT-S World Microwave Congress last week, be sure to check out the session recording, now available ...

Selecting VCOs for Clock Timing Circuits A System Perspective

May 9, 2024
Clock Timing, Phase Noise and Bit Error Rate (BER) Timing is critical in digital systems, especially in electronic systems that feature high-speed data converters and high-resolution...