Ultra Wide Bandwidth
This UWB differs substantially from conventional narrowband radio frequency (RF) and spread spectrum technologies (SS), such as Bluetooth* Technology and 802.11a/b/g. A UWB transmitter works by sending billions of pulses across a very wide spectrum of frequency several GHz in bandwidth. The corresponding receiver then translates the pulses into data by listening for a familiar pulse sequence sent by the transmitter. UVVBs combination of larger spectrum, lower power and pulsed data improves speed and reduces interference with other wireless spectra. In the United States, the Federal Communications Commission (FCC) has mandated that UWB radio transmissions can legally operate in the range from 3.1 GHz up to 10.6 GHz, at a limited transmit power of-41dBm/MHz. The result is dramatic short-range channel capacity and limited interference.
Manoj Joshi
Computer Engineering Department, G.B.P.U.A&T Pantnagar-263145, India
国际会议
上海
英文
374-378
2010-06-22（万方平台首次上网日期，不代表论文的发表时间）