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DSSS
Last modified: Tuesday, October 01, 2002 

Acronym for direct-sequence spread spectrum. DSSS is one of two types of spread spectrum radio, the other being frequency-hopping spread spectrum. DSSS is a transmission technology used in LAWN transmissions where a data signal at the sending station is combined with a higher data rate bit sequence, or chipping code, that divides the user data according to a spreading ratio. The chipping code is a redundant bit pattern for each bit that is transmitted, which increases the signal's resistance to interference. If one or more bits in the pattern are damaged during transmission, the original data can be recovered due to the redundancy of the transmission.

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For internet.com pages about DSSS . Also check out the following links!

Related Links

FCC Opens Spectrum
The Federal Communications Commission made a major policy shift in the federal rules that govern U.S. wireless communications.

Selecting a wireless LAN technology
Proxim white paper explaining two spread spectrum technologies: Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).

Spread Spectrum
Frequency hopping vs. direct sequence

Wireless LAN Alliance home page
Contains an organizational overview and links to an introduction to wireless LANs, user stories, resources, and contact information.

related categories

Communications Standards

Wireless Computing

related terms

802.11

bandwidth

CCK

DSSS

FHSS

GPR

local-area wireless network (LAWN)

OFDM

PLL

WLAN


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