Changes between Version 2 and Version 3 of 802.11/FAQ


Ignore:
Timestamp:
Jul 23, 2013, 3:30:14 PM (11 years ago)
Author:
chunter
Comment:

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  • 802.11/FAQ

    v2 v3  
    4646 * The channel estimation block computes a complex channel estimate (magnitude and phase) for each subcarrier per-packet. The equalizer applies the channel estimate per-subcarrier. The current Rx PHY uses the same channel estimates for the full packet. Extending this to a decision feedback scheme (where channel estimates are updated intra-packet) would be a straightforward extension.
    4747
    48 '''Multi-antenna support:''' The current PHY Tx/Rx pipelines are SISO, supporting only the modulation/coding rates specified in section 18 of the standard. The PHY implementation does support Tx and Rx antenna selection per-packet. The active Tx interface is selected per-packet by the PHY control code. The Rx interface can be selected per-packet by code or automatically per-packet based on AGC gain settings. This Rx mode is a basic implementation of receive selection diversity.
    49 
     48'''Multi-antenna support:''' The current PHY Tx/Rx pipelines are SISO, supporting only the modulation/coding rates specified in section 18 of the standard.
    5049
    5150