超寬帶技術(shù)與其它短距離無線通信技術(shù)的比較-資料下載頁
2025-06-29 17:47本頁面
【正文】 mount to 100 m or so. Wi Fi may provide hot coverage, low mobility and high speed of data transmission, wireless access and transmission with high speed is Wi Fi technical main characteristics. Domestic telemunication, CNC, mobile are very concerned Wi Fi technology development and application. Based on the hotspot access service once considered the huge impact on 3G, but Wi Fi technology transmission distance is short and signals penetrate the characteristics of poor ability also insurmountable. Wi Fi technical superiority In recent years, the number of WAP at a rapid pace, wireless network convenience and efficient make its rapid popularization. Whether wireless urban construction, or business unit of LAN opening, or mobile phones Wi Fi function, all with Wi Fi technical advantages of itself is not divided: 1) wider LAN coverage Based on bluetooth radio coverage is very small, radius, and only about 15m Wi Fi radius criterion of up to 100 m, can cover whole building office building, 2) transmission speed Wi Fi technology transmission is very fast, can achieve 11Mbps ( b) or 54Mbps ( a), suitable for high speed data transmission business。 3) without wiring Wi the main advantage lies in the Fi don39。t need wiring, need not suffer wiring condition limit, so very suitable for mobile office users needs. At the airport, station, coffee shop, library such personnel more dense place Settings hot spots, and through highspeed lines will Internet access these places. Users will only support wireless LAN laptop or PDA get within the area, can highspeed access the Internet。 4) health and safety The launch of provisions shall not exceed 100 power HaoWa, actual transmission power, about 60 ~ 70 HaoWa, and mobile transmission power about 200 HaoWa ~ 1 tile between handheld interphone, $5 watts. Compared with the latter, Wi Fi products of radiation smaller. 3 conclusions Each kind of wireless munication has its distinctive place, ultrawideband technology transfer rate is high, Wi Fi technology bestrow scope. As wireless munications technology development, people on highspeed shortrange wireless munication request more and more high, ultrawideband technology, Wi Fi technology has broad prospects for development.9 /
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