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¹«¼± utopia·Î À̲ø¾î ¿ì¸®´Â Àΰ¡? ´ç½ÅÀÇ SOHO ¹«¼±¿¡ Á¢±ÙÇϱâ À§ÇÏ¿© ´ç½ÅÀÌ µ¿ÀÏÇÑ ÈÞ´ë¿ë ÀåÄ¡¸¦ »ç¿ëÇÒ ¼ö ÀÖÀ» ¶§ °Å±â Á¡ °ð ¿Ã °ÍÀΰ¡? Àú µ¿ÀÏÇÑ ÀåÄ¡´Â cybercafé °øÇ׿¡ ÀÖ´Â WiFi hotspot¿¡ ¿¬°áÇÒ ¼ö ÀÖ¾ú´Â°¡? ´ç½ÅÀÌ ´ç½ÅÀÇ ÀüÀÚ ¿ìÆíÀ» °Ë»çÇÏ´Â °ÍÀ» Çã¿ëÇϴ°¡? ¼¼°èÀûÀÎ Á÷Ã¥ ½Ã½ºÅÛ ÀڷḦ ÀÌ¿ëÇϴ°¡?
¾Æ¸¶ ±×·± ÀåÄ¡´Â, Àü°¥ ´ç½ÅÀÌ ±¹°¡¿Í ±¹Á¦ÀûÀÎ Àüȸ¦ °Å´Â °ÍÀ» Çã¿ëÇÒ Á¶Â÷ ¼ö ÀÖ°í VoIP ¼¼°è ¾îµð¼³ª ºÎ¸¥´Ù ¼¼Æ÷Áú ³×Æ®¿öÅ©ÀÇ ¾î´À À¯Çü¿¡ °üÇÏ¿©¿¡ °í¹ÎÇÏ´Â °ÍÀ» Çϱ⠾øÀÌ ´ç½ÅÀÌ ÀÎÁö? ¿ì¸®°¡ ±×°Í¿¡ ÀÎ µ¿¾È ¾Æ, Àú ¾ÆÁÖ µ¿ÀÏÇÑ ÀåÄ¡´Â ÈÞ´ë¿ë ÄÄÇ»ÅÍ¿Í °°Àº ´Ù¸¥ ÀåÄ¡¸¦ °¡Áø ÀÎÅͳݿ¡ °í¼Ó ±¤´ë¿ª Á¢±ÙÀ» °¡´ÉÇÏ°Ô Çϱâ À§ÇÏ¿© »ç¿ëµÇ°í?
GuelphÀÇ ´ëÇп¡ °è»ê ±×¸®°í Á¤º¸ °úÇÐÀÇ ºÎÀÇ Nidal Nasser, ±×¸®°í, ¿©¿ÕÀÇ ´ëÇп¡, ¿Â´Ù¸®¿À¿¡¼, ij³ª´Ù´Â °è»êÀÇ Çб³ÀÇ Hossam Hassanein¿¡ µû¸£¸é °ÇÃà¼ú, ÀÇÁ¤¼ ¹× °ø±â °ø¿ë¿µ¿ª¿¡ ÀÖ´Â À̼ººÐÀÌ, "¹Ì·¡ ¹«¼± ³×Æ®¿öÅ© ÀϹÝÀûÀ¸·Î Ư¡ÀÏ °ÍÀÌ´Ù." Áï ±×µéÀº ´Ù¸¸ ³ª°¡ °³Åë Àý¿¡¼¸¦ ¿ä±¸ÇÑÁö ¹«¾ùÀ» ÇÒ °ÍÀÌ´Ù.
±×·¯³ª, ¹«¼± ³×Æ®¿öÅ· Àå¸éÀº 2°³ÀÇ ¸í·áÇÑ ³×Æ®¿öÅ· Ç÷¡Æ®È¨¿¡ ÀÇÇØ Áö¹èµÈ´Ù: 3 ¼¼ (3G) ´Ü°è¿¡¼ ¼¼Æ÷Áú ³×Æ®¿öÅ©, ÇöÀç, ¹× ¹«¼± ÀϹÝÀûÀ¸·Î 802.11·Î ¾Ë·ÁÁ® ÀÖ´Â IEEE ±âÁØÀÇ ¹Ø¿¡ °¢Á¾ ¼ÓµµÀ¸·Î WiFi¿Í ¿î¿µÇϱâ·Î ¾Ë·ÁÁ® ÀÖ´Â ±Ù°Å¸® ³×Æ®¿÷. ±×¸®°í, °áÄÚ twain´Â ¸¸³ªÁö ¾ÊÀ» °ÍÀÌ´Ù.
½ÇÁ¦·Î, Àú°ÍÀº ÁؾöÇÏ°Ô Áø½ÇÇÏÁö ¾Ê°í, Nasser Hassanein´ÂÀÇ Æ¯º°ÆÇ¿¡¼ ¼³¸íÇÑ´Ù ¹«¼±°ú ¸ð¹ÙÀÏ ÄÄÇ»ÆÃÀÇ ±¹Á¦ Àú³Î. "ÃÖ±Ù µ¿Çâ,"´Â ÃÖÁ¾ »ç¿ëÀÚ¿¡ °øÁß ¹«¼± ±¤´ë¿ª ¼ºñ½º¸¦ Á¦¾ÈÇϱâ À§ÇÏ¿© 3G ³×Æ®¿öÅ©¿Í WLANs°¡ º´Á¸ÇÒ °ÍÀ̶ó´Â Á¡À» ¹àÈù´Ù, "³ªÅ¸³½´Ù. 2°³ÀÇ Ç÷¡Æ®È¨Àº." ¿ÏÀüÇÏ°Ô º¸ÃæÇϴ Ư¼ºÀ» Á¦¾ÈÇÑ´Ù ÀÌ·¸°Ô ¿ì¸®´Â ¹«¾ùÀ» ÀÌ »óº¸¼º¿¡°Ô ±â´ëÇØ¼ ÁÁÀº°¡?
3G ¼¿·ê¶ó ½Ã½ºÅÛÀº ¼ø°£À» Áö¿øÇϰí 144 kb/s¿¡¼ ³ÐÀº Àû¿ë ¹× °ÅÀÇ º¸ÆíÀûÀÎ ¹èȸ¸¦ °¡Áø 2 Mb/s¿¡ Àü¼ÛÀ²À» °¡Áø non-real-time ¸ÖƼ¹Ìµð¾î ¼ºñ½º´Â, ¿¬±¸¿ø ¼³¸íÇÑ´Ù. ±×·¯³ª, ¹«¼± Á֯ļö´Â, 3G ü°è°¡ ÀÛµ¿Çϰí ÀǹÌÇÏ´Â Àåºñ°¡ °Ý»ó½ÃŰ´Â, ½ºÆåÆ®·³¿¡°Ô ºñ½Î´Ù Åë½Å¼ö, 3G ´ç½Å°ú Àú¿¡°Ô ºñ½Î´Ù.
WLAN´Â, ´Ù¸¥ ÇÑÆíÀ¸·Î´Â, ´Þ¸®°Ô ¾ÆÁÖ ½Î´Ù ´Ù·®ÀÌ´Ù, 3G º¸´Ù´Â ¸Å¿ì »¡¸® (54 Mb/s ¹× ¹«¼± n¿¡°Ô ¿À±â¿¡ ¹«¼± g ÀÏÀº ³»³â¿¡ 248 Mb/sÀÇ ÃÖ°íÀ²À» ¾à¼ÓÇÑ´Ù). ±×·¯³ª, WLANs ºÎÁ·Àº ¼¼Æ÷Áú ³×Æ®¿öÅ©ÀÇ ±¤¸·ÇÑ Àû¿ë ¹èȸ Áö¿ø Á¦Æ®±â Á¶Á¤ 3G »ç¿ëÀÚÀÇ ¾Æ¹«µµ¿¡°Ô »ç¶ûÀÌ µÇ¾î ´Þ¶ó°í ÇÏÁö ¾Ê´Â´Ù.
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 ¡é
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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