外文翻譯--超寬帶技術(shù)的短期或中期范圍內(nèi)的無(wú)線通信(已修改)
2025-06-12 12:03 本頁(yè)面
【正文】 外文文獻(xiàn)原文UltraWideband Technology for Shortor MediumRangeWireless CommunicationsJeff Foerster, Intel Architecture Labs, Intel Corp. Evan Green, Intel Architecture Labs, Intel Corp. Srinivasa Somayazulu, Intel Architecture Labs, Intel Corp. David Leeper, Intel Connected Products Division, Intel Corp. Index words: UWB, wireless, munications, LAN, PAN ABSTRACTUltraWideband (UWB) technology is loosely defined as any wireless transmission scheme that occupies a bandwidth of more than 25% of a center frequency, or more than . The Federal Communications Commission (FCC) is currently working on setting emissions limits that would allow UWB munication systems to be deployed on an unlicensed basis following the Part rules for radiated emissions of intentional radiators, the same rules governing the radiated emissions from home puters, for example. This rule change would allow UWBenabled devices to overlay existing narrowband systems, which is currently not allowed, and result in a much more efficient use of the available spectrum. Devices could, in essence, fill in the unused portions of the frequency spectrum in any particular location. These recent developments by the FCC give Intel a unique opportunity to develop equipment that could potentially take advantage of the vast amount of usable spectrum that exists in the wireless space, and that could provide an engine to drive the future highrate applications that are being conceived throughout this industry. Intel174。 Architecture Labs (IAL) is currently researching UWB technology in order to better understand its benefits, limitations, and technical challenges when used for highrate munications. This paper introduces the reader to this technology, from potential applications to regulatory hurdles, to possible implementations and future challenges.INTRODUCTIONUltraWideband (UWB) technology has been around since the 1980s, but it has been mainly used for radarbased applications until now (see [1] and the references therein), because of the wideband nature of the signal that results in very accurate timing information. However, due to recent developments in highspeed switching technology, UWB is being more attractive for lowcost consumer munications applications (as detailed in the “Implementation Advantages” section of this paper). Intel Architecture Labs (IAL) is currently working on an internally funded research project whose intent is to further explore the potential benefits and future challenges for extending UWB technology into the highrate munications arena. Altho
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