Question

Advantages and disadvantages of spatial communication

Answer 1

Answer:

The full form of SDMA is Spatial Division Multiple Access OR Space Division Multiple Access methods. It is one type of channel access method. It is used for mobile communication system which reuses the same set of cell phone frequencies in a given service area.  

Advantages of SDMA :  

• SDMA is frequency reuse

• Mobile station battery consumption is low

• Increased spectral efficiency

• SDMA is transparent to the system if it is purely optical

• Use any bandwidth or data rate achievable in fiber

• SDMA is usually combined with other multiplexing techniques to better utilize the individual physical channel

Disadvantages of SDMA :

• Some of  the disadvantages of  SDMA is the fact that the number of switches

• SDMA is very expensive and complicated to construct and design

• There are also high insertion losses since each input must have the capability to be split to any output.

• The reverse link may be a problem like an interference problem.

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