HT
. . . .

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HT

• 802.11n amendment defines an operation known as High Throughput (HT), which provides PHY and MAC enhancements to provide for data rates potentially as high as 600 Mbps.
  
• With the use multiple-input, multiple-output (MIMO) technology in unison with Orthogonal Frequency Division Multiplexing (OFDM) technology. The benefits of using MIMO are increased throughput and even greater range.
  

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Reference:
Coleman, David D.,Westcott, David A. CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-106 Wiley.