Detailing global mobile subscribers by country and radio access technology.
全球手机用户数详细内容：国家·无线不同的联机技术。
OFDM technology will become the core technology for wireless communication in the future, OFDM will be widely used in cognition radio, in the 4G mobile communication and the wireless broadband access.
OFDM技术将成为未来无线通信中的核心技术，在认知无线电、4G移动通信和无线宽带接入等领域得到广泛的应用。
It USES Radio Frequency technology, instead of old local area network with twisted-pair copper wire, and makes the wireless local area network use simple architecture which allows users to access.
它利用射频的技术，取代旧式的双绞铜线所构成的局域网络，使得无线局域网络能利用简单的存取架构让用户透过。
Cognitive radio can effectively improve the utilization of spectrum through dynamic spectrum access technology, in which the channel selection affects directly the performance of the system.
认知无线电可以通过动态频谱接入技术来有效的提高频谱的利用率，而在动态频谱接入中信道选择策略的优劣直接影响着系统的性能。
Radio frequency identification (RFID) technology and biometric feature recognition technology have become the mainstream of modern access control technology now.
射频识别(RFID)技术与生物特征识别技术如今已经成为当代门禁技术的主流。
Radio frequency identification (RFID) technology and biometric feature recognition technology have become the mainstream of modern access control technology now.
射频识别(RFID)技术与生物特征识别技术如今已经成为当代门禁技术的主流。
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