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What type of multiplexing is widely used in cellphones?(a) Time division multiplexing(b) Frequency division multiplexing(c) Code division multiplexing(d) Spatial multiplexing |
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Answer» Right answer is (c) Code division multiplexing The explanation is: Another form of multiple accesses is known as code-division multiple access (CDMA). It is widely used in cell phone systems to allow many cell phone subscribers to use a common bandwidth at the same time. This system uses special codes assigned to each user that can be identified. CDMA uses a technique called spread spectrum to make this type of multiplexing possible. |
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