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連接的3G設備到WiFi

2008年2月12日 · 由大衛布雷得里

3G WiFi朝向往無線烏托邦的我們? 當您可能使用同一套攜帶式裝置訪問您的SOHO無線,那裡是否很快將來點? 那個同樣設備能連接到一WiFi hotspot在cybercafe�或機場? 允許您檢查您的電子郵件? 運用全球性定位系統數據?

或許這樣設備可能甚而允許您打全國和國際電話,傳訊,并且VoIP從世界上任何地方叫,无需必須擔心多孔的網絡的哪個類型您是在? 噢,和,當我們是在它時,那個非常同樣設備可能使用使能對互聯網的高速寬頻通入用另一個設備,例如便攜式計算機?

根據計算和情報學的部門的學校的Nidal納賽爾,在Guelph大學和Hossam Hassanein計算,在女王的大學,在安大略,加拿大, 「未來無線網絡在建築學、協議和空氣接口一般描繪將為非均勻性」。 換句話說,他們將做什麼我請求在開頭段。

然而,無線網絡場面由二個分明網絡平臺控制: 多孔的網絡,當前在第三代(3G)階段和無線區域網,共同地以WiFi和操作著名以各種各樣的速度根據IEEE標準以802.11著名。 并且,吐溫不会見面。

實際上,那不嚴密地是真實的,納賽爾,并且Hassanein在一個特別問題解釋的 無線和移動計算機處理技術國際定期刊物. 「最近趨向」,他們認為, 「表明3G網絡和WLANs將共存為終端用戶提供公開無線寬頻服務。 二個平臺提供完全互相補全的特徵」。 如此我們可以期望什麼從這互補性?

3G單元系統支持實時,并且non-real-time多媒體服務以數據速率從144 kb/s到2 Mb/s以寬覆蓋面和幾乎普遍漫遊,研究員解釋。 然而,射頻,光譜, 3G系統經營,并且設備升級自己,是昂貴的對操作員,意味3G是昂貴的對您和我。

WLAN,另一方面,是非常便宜跑和,快速地比3G (無線g工作在54 Mb/s和無線n來明年許諾248 Mb/s的最高率)。 然而, WLANs缺乏多孔的網絡浩大的覆蓋面和不讓漫遊的支持噴氣機設置3G用戶成長為愛。

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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