Changes between Version 6 and Version 7 of 802.11/PHY

Timestamp:

Aug 25, 2013, 10:27:32 PM (11 years ago)

Author:

murphpo

Comment:

--

802.11/PHY

@@ -34 +34 @@
 ||  64-QAM  ||  3/4  ||  54  ||
 
-'''DSSS:''' The PHY receiver also implements the 1Mbps DSSS rate specified in the original 802.11 standard (section 16.2 of the 802.11-2012 standard). This receiver allows reception of management frames transmitted by 802.11 devices at 1Mbps. These transmissions are common in deployments of 802.11 hardware at 2.4GHz. For example, Beacon and Probe Request frames are frequently transmitted at 1Mbps by commercial devices. The basic STA/AP association handshake requires reception of these frames. The 802.11 Reference Design does not implement a DSSS transmitter, as 802.11 devices are able to receive management frames at higher rates (including 6Mbps, the lowest OFDM rate, which is commonly used for management frames at 5GHz).
+'''DSSS:''' The PHY receiver also implements the 1Mbps DSSS rate specified in the original 802.11 standard (section 16.2 of the 802.11-2012 standard). This receiver allows reception of management frames transmitted by 802.11 devices at 1Mbps. These transmissions are common in deployments of 802.11 hardware at 2.4GHz. For example, Beacon and Probe Request frames are frequently transmitted at 1Mbps by commercial devices. The basic STA/AP association handshake requires reception of these frames. The 802.11 Reference Design does not implement a DSSS transmitter, as modern 802.11 devices are able to receive management frames at higher rates (including 6Mbps, the lowest OFDM rate, which is commonly used for management frames at 5GHz).
 
-'''Synchronization:''' Our PHY implementation requires no "cheating"- all synchronization is implemented in the FPGA and operates per-packet in real-time.
+'''Synchronization:''' Our PHY implementation requires no "cheating"- all synchronization is implemented in the FPGA and operates per-packet in real time.
  * The AGC block selects Rx gains per-packet and makes no assumptions about inter-packet receive powers.
  * The CFO (carrier frequency offset) block estimates and corrects CFO per-packet. CFO estimates are extracted from the preamble long training symbols and correction is applied pre-FFT.