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Jack Heaton Wireless Operator【電子書籍】 Archie Frederick Collins

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Jack Heaton Wireless Operator【電子書籍】[ Archie Frederick Collins ]

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価格￥640

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＜p＞It happened out at sea about five hundred miles as wireless waves fly from Montclair. But perhaps you don’t know where Montclair is and maybe you don’t particularly care, but as it is my home town I must tell you about it. First, it’s in New Jersey a short way from South Orange, where Mr. Edison, the great inventor, has his laboratory, and about twelve miles from New York City. So you see it is pretty favorably located. If you were a stranger going through the place you’d have been surprised to see the webs of wires strung around every other house in town and on first sight you might have taken them for telegraph or telephone lines, or as I once heard a man remark to my father, “They look like lines on which to hang the family wash.” But, nay, nay, these wires, on the contrary, were not used for any such commonplace purpose but they were, instead, aerials put up by wireless boys for sending and receiving messages. Just about half of the fellows in our town at that time were wir...

Wireless Networks【電子書籍】[ Daniel Collins ]

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価格￥14,302

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＜h4＞Design Next-Generation Wireless Networks Using the Latest Technologies＜/h4＞＜p＞Fully updated throughout to address current and emerging technologies, standards, and protocols, ＜em＞Wireless Networks＜/em＞, Third Edition, explains wireless system design, high-speed voice and data transmission, internetworking protocols, and 4G convergence.＜/p＞＜p＞New chapters cover LTE, WiMAX, WiFi, and backhaul. You'll learn how to successfully integrate LTE, WiMAX, UMTS, HSPA, CDMA2000/EVDO, and TD-SCDMA into existing cellular/PCS networks. Configure, manage, and optimize high-performance wireless networks with help from this thoroughly revised, practical guide.＜/p＞＜p＞＜strong＞Comprehensive coverage includes:＜/strong＞＜/p＞＜ul＞＜li＞Overview of 3G wireless systems＜/li＞＜li＞UMTS (WCDMA) and HSPA＜/li＞＜li＞CDMA2000 and EVDO＜/li＞＜li＞TD-SCDMA and TD-CDMA＜/li＞＜li＞LTE＜/li＞＜li＞WiMAX＜/li＞＜li＞VoIP＜/li＞＜li＞WiFi＜/li＞＜li＞Broadband system RF desig...