spread spectrum

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spread spectrum

n.
A set of radio transmission techniques that vary the timing and frequency of the signal, thereby increasing the transmission's bandwidth, reducing noise and interference while making the signal harder to detect or intercept.
References in periodicals archive ?
A license agreement will also result between Microsoft and Motorola for Motorola's 802.11 standard-essential patents, Judge Robart wrote.
The core of the 802.11 DCF protocol is the carrier sense multiple access with collision avoidance (CSMA/CA).
IEEE 802.11 is concerned with features such as Ethernet matching speed, long range (100m), complexity to handle seamless roaming, message forwarding, and data throughput of 2-54Mbps, while IEEE 802.15.4 on a space around a person or object that typically extends up to 10m in all directions.
IEEE 802.11 is the working group for Wireless Local Area Networks (WLAN) within IEEE 802 LAN/MAN Standards Committee (LMSC).
Key words: IEEE 802.11 MAC, denial of service, power control, wireless security
Since the 802.11 standard doesn t address this problem, Airtight felt it was important to raise awareness around it," said Bhagwat.
The product features a high-performance ARM Cortex-A8 processor with 600 and 800MHz processor speeds and offers 10/100MB Ethernet networking, as well as a pre-certified 802.11 a/b/g/n wireless interface.
"Marvell has been actively involved in the creation of Bluetooth 3.0 + HS, bringing its 802.11 experience to bear on this important evolution in Bluetooth wireless technology," said Michael Foley, Ph.D., executive director, Bluetooth SIG.
For some (41 percent) it is a budget issue, but for others (28 percent) there is still concern about interoperability with existing 802.11 gear.
Other features include 1GB of high speed DDR2 memory, a 100GB high speed SATA hard drive, a dual layer DVD burner, built-in 802.11 b/g wireless networking and an integrated 4-in-1 media reader that supports SD, MS, MMC and MS Pro media formats for easy transfer of digital photos.
The Telex Legacy operates under the IEEE 802.11 standard, which is the same standard that is utilized for computer wireless networking.
The product is built on a variety of standards, including USB and USB 2.0, FireWire, Ethernet, 802.11 a/b/g, Bluetooth, and Rendezvous, and works with your PC to detect and monitor all your devices.