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连接的3G设备到WiFi

2008年2月12日 · 由大卫布雷得里

3G WiFi朝向往无线乌托邦的我们? 当您可能使用同一套携带式装置访问您的SOHO无线,那里是否很快将来点? 那个同样设备能连接到一WiFi hotspot在cybercafe�或机场? 允许您检查您的电子邮件? 运用全球性定位系统数据?

或许这样设备可能甚而允许您打全国和国际电话,传讯,并且VoIP从世界上任何地方叫,无需必须担心多孔的网络的哪个类型您是在? 噢,和,当我们是在它时,那个非常同样设备可能使用使能对互联网的高速宽频通入用另一个设备,例如便携式计算机?

根据计算和情报学的部门的学校的Nidal纳赛尔,在Guelph大学和Hossam Hassanein计算,在女王的大学,在安大略,加拿大, “未来无线网络在建筑学、协议和空气接口一般描绘将为非均匀性”。 换句话说,他们将做什么我请求在开头段。

然而,无线网络场面由二个分明网络平台控制: 多孔的网络,当前在第三代(3G)阶段和无线区域网,共同地以WiFi和操作著名以各种各样的速度根据IEEE标准以802.11著名。 并且,吐温不会见面。

实际上,那不严密地是真实的,纳赛尔,并且Hassanein在一个特别问题解释的 无线和移动计算机处理技术国际定期刊物. “最近趋向”,他们认为, “表明3G网络和WLANs将共存为终端用户提供公开无线宽频服务。 二个平台提供完全互相补全的特征”。 如此我们可以期望什么从这互补性?

3G单元系统支持实时,并且non-real-time多媒体服务以数据速率从144 kb/s到2 Mb/s以宽覆盖面和几乎普遍漫游,研究员解释。 然而,射频,光谱, 3G系统经营,并且设备升级自己,是昂贵的对操作员,意味3G是昂贵的对您和我。

WLAN,另一方面,是非常便宜跑和,快速地比3G (无线g工作在54 Mb/s和无线n来明年许诺248 Mb/s的最高率)。 然而, WLANs缺乏多孔的网络浩大的覆盖面和不让漫游的支持喷气机设置3G用户成长为爱。

If only there were a way to combine the coverage and roaming of 3G with the low cost and speed of WiFi and avoid the disadvantages of each, then we would enter that utopian world of ubiquitous high-speed wire-free data. “Development and standardization efforts are currently underway for defining suitable architectures for integrating 3G and WLAN,” explain Nasser and Hassanein, “However, designing a network architecture that efficiently integrates 3G systems and WLAN is a challenge task that needs a lot of research effort.”

Much of which is described in the special issue covering topics such as 3G/WLAN architectural design, technical management and operation of such a hybrid system, resource management, end-to-end quality of service (QoS) to make sure the whole experience of using a 3G-WLAN device is seamless and transparent, video streaming, and inevitably charging and billing.

2 responses so far ↓

  • Vanessa // Apr 12, 2008 at 9:19 am

    Necessity is the mother of Invention. Everyone wants the best of both worlds. And the Utopia that you’ve mentioned in the intial paragraphs is everyone’s need. We’ve found that technology driven by business delivers at the right moment. Therfore the day is not far when the two shall meet.

    Vanessa@ Future of Engineering Blog

  • David Bradley // Apr 12, 2008 at 12:15 pm

    I think you’re probably right. If there’s demand for it, then a solution will be found. One thing that often stymies progress, however, is licensing regulations that prevent technology convergence because it can lead to monopoly status (it’s bullshit, of course)

    db

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