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。

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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。

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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。

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As well as Spotify, the technology also includes access to thousands of radio stations from all over the world.

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He said Dell's customers are telling the company they prefer the idea of mobile Internet access via wireless notebook computers, using technology such as the Bluetooth and 802.11 standards as well as emerging wireless telecommunications technology such as GPRS (General Packet Radio Service), wideband CDMA (Code Division Multiple Access) and UMTS (Universal Mobile Telecommunications System).

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