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由于Wi-Fi的频段在世界范围内是无需任何电信运营执照的免费频段,因此WLAN无线设备提供了一个世界范围内费用极其低廉且数据带宽极高的无线空中接口。根据InStat公司的市场预测报告,到2015年全球Wi-Fi市场将达到每年19亿个设备的水平。目前,Wi-Fi技术已经发展到第五代。2013年6月21日,Wi-Fi Alliance正式推出了Wi-Fi CERTIFIEDac认证计划。新一代产品与旧版Wi-Fi产品相比,能以快一倍甚至两倍的速度提供全家庭网络覆盖,并可轻松处理诸如超高清4k视频、多媒体、以及快速文件传输等高要求的应用。
Because Wi-Fi’s frequency bands are free worldwide without any telecom licenses, WLAN wireless devices provide a wireless air interface that is extremely affordable and has extremely high data bandwidth worldwide. According to InStat’s market forecast, the global Wi-Fi market will reach 1.9 billion devices per year by 2015. At present, Wi-Fi technology has been developed to the fifth generation. On June 21, 2013, the Wi-Fi Alliance officially launched the Wi-Fi CERTIFIEDac certification program. The new generation offers full home network coverage twice or twice as fast as legacy Wi-Fi products and easily handles demanding applications such as Ultra HD 4k video, multimedia, and fast file transfer.