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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
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802.11 802.11a 802.11b 802.11g 802.11n Adaptive antenna system (AAS) Adaptive Antenna System (AAS) Delay spread Doppler spread Fading in wireless communications Frequency reuse Handoff protocols Intercell and intracell handover ISM bands M3QD4D WaS HeRe !! OFDM Paging system Simplex, half-duplex and full-duplex Types of cellular networks Types of spectrum sharing WiMax service classes
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Simplex, half-duplex and full-duplex
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Simplex means that communication is possible in only one direction.
Half-duplex means that communication is possible in both directions, but they cannot send data simultaneously, and must be one by one. In general, the same radio frequency is used for both transmission and reception.
Full-duplex means that simultaneous communication is possible in both directions. This can be realized in a way of frequency division with one frequency for up link and another frequency for down link, or in a way of time division by assigning one time slot for up link and another time slot for down link.
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Added: 23rd October 2006 03:03:43 AM Modified: 23rd October 2006 03:03:43 AM
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