Space-Time Block Coding (STBC)
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Space-Time Block Coding (STBC)
- Space-time block coding (STBC) is a method where the same information is transmitted on two or more antennas.
- It is a type of transmit diversity.
- STBC can be used when the number of radio chains exceeds the number of spatial streams.
- By sending copies of the same information on multiple antennas, the actual rate of the data transmitted does not increase as transmit antennas are added. STBC does, however, increase the receiver’s ability to detect signals at a lower SNR than would be otherwise possible.
- The receive sensitivity of the radio system improves.
- STBC communication is possible only between 802.11n devices.
- Improves reception by encoding data streams in blocks across multiple antennas.
- STBC communication is possible only between 802.11n devices.
Reference:
Coleman, David D.,Westcott, David A. CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-106 Wiley.
Coleman, David D.,Westcott, David A. CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-106 Wiley.
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