What is SDMA

For to know about SDMA you should first of all check it out the full form of SDMA.


SDMA stands for space division multiple access. It depends on the user position information and provides users access to the communication channel based on their spatial locations. 

SDMA separated into the geographical space, where users are located, into smaller space. It is used for a mobile communication system which reuses the same set of cell phone frequencies in a given service area.


Space division multiple access is techniques which are MIMO architecture and it can be used in wireless and satellite communication. This article also gives some feature of SDMA given below. 
  • SDMA is completely free from interference.
  • Controlling the medium access for a wireless network.
  • Careful choice of a zone for each transmitter.
  • In this system control the radiated energy for each user in space.
  • All user can communicate at the same time using the same channel.
  • The directional spot beam antennas are used and hence the (BS) base station in SDMA can track a moving user.
  • A single satellite can communicate with more satellites receivers of the same frequency. frequency.
  • SDMA never used isolation.
  • Satellite communication
  • Optical communication
  • Wireless communication
  • Mobile communication
  • SDMA can be also used in conjunction with the WDM  system  and TDM
  • SDMA uses a spot beam antenna

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