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CCK |
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CCK(Complimentary Code Keying) A direct sequence spread spectrum (DSSS) coding method used in the 802.11b wireless LAN standard for 5.5 and 11 Mbps. The slower 1 and 2 Mbps specifications use Barker coding which has a chip rate of 11 compared to 8 in CCK. CCK also provides up to 64 coding patterns, whereas Barker uses only one. Unlike CDMA, which overlaps transmissions using different codes, CCK uses the different codes to transmit more data serially (TDM). Contrast with OFDM. See CCK/OFDM and chip rate. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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2000) in samples from the present PCB-126 study, levels of intestinal CCK are reduced by PCB-126 exposure. The new chip set will implement the proposal's mandatory CCK and OFDM modulation schemes, supporting data rates up to 54Mbps. Food settling into the lower stomach stimulates the intestinal cells to release the hormone, and CCK then activates the pancreas and gall bladder to produce digestive juices. |
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