orthogonal frequency division multiplexing
Arabic translation: مضاعفة الانقسام الترددي المتعامد
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| 15:32 Jul 3, 2004 |
| English to Arabic translations [PRO] Tech/Engineering - IT (Information Technology) / Networks, data transmission/Wi-LAN | |||||||
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|  Selected response from: Randa Farhat Lebanon Local time: 01:39 | ||||||
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| 3 +1 | مضاعفة الانقسام الترددي المتعامد |
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| 1 | تقنية تقسيم قناة الاتصال إلى حزم تردد مستقلة |
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Answers
41 mins confidence: 
تقنية تقسيم قناة الاتصال إلى حزم تردد مستقلة Explanation: OFDM تقنية (تقسيم قناة الاتصال إلى حزم تردد مستقلة) Orthogonal frequency division multiplexing (OFDM) is a communications technique that divides a communications channel into a number of equally spaced frequency bands. A subcarrier carrying a portion of the user information is transmitted in each band. Each subcarrier is orthogonal (independent of each other) with every other subcarrier, differentiating OFDM from the commonly used frequency division multiplexing (FDM). orthogonal frequency division multiplexing is a very effective way of protecting data transmitted over a communications channel that experiences narrow-band fading. |
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5 hrs confidence: peer agreement (net): +1
peer agreement (net): +1| orthogonal frequency-division multiplexing مضاعفة الانقسام الترددي المتعامد Explanation: there should be a (dash) frequency-division Orthogonal frequency-division multiplexing (OFDM): تعريف (1) a method of digital modulation in which a signal is split into several narrowband channels at different frequencies (2) Orthogonal FDM's (OFDM) spread spectrum technique distributes the data over a large number of carriers that are spaced apart at precise frequencies. This spacing provides the "orthogonality" in this technique which prevents the demodulators from seeing frequencies other than their own http://searchnetworking.techtarget.com/sDefinition/0,,sid7_g... http://www.wave-report.com/tutorials/OFDM.htm |
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