By Baumann C.
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Extra info for A simple and fast look-up table method to compute the Exp and Ln functions
S. and European standards both specify a similar number of hopping channels, and a maximum dwell time (the time spent at a particular frequency during any single hop) of 400 ms. Bandwidths of up to 7 MHz are available once either the listen-before-talk (LBT) or duty-cycle limits are met, as compared to the 2-MHz range available previously. Listen-before-talk, a polite communication protocol, scans the channel for activity before initiating a transmission. Also called clear-channel-assessment (CCA), systems using LBT with frequency hopping have no duty-cycle limitations.
7). With a wireless LAN in place, portable computers can remain connected to the network while on the move. Any device with a wireless adaptor within range of an access point can potentially connect to the WLAN. This provides greatly increased freedom and flexibility compared to a wired network. 7 WLAN components. Extending the WLAN to include additional users often only requires that the user have a wireless-enabled computer device and be in range of an access point. Increasing the overall network coverage of the WLAN can often be achieved by adding further access points.
Similarly, a radio-controlled valve for the urinary tract is in development that will be operated on demand to restore bladder control. There is a growing need for implants, particularly heart implants, to communicate over greater distances than the current rules, at 25 µW EIRP (−16 dBm), allow. The power permitted under MICS accommodates, at most, 6 to 8 feet of separation. For instance, it is increasingly difficult, if not impractical, to position implant monitoring equipment near patients in operating environments when physicians and nurses require unfettered access to patients at all times.