Changes between Version 8 and Version 9 of OFDM/MIMO/Docs/PHYDetails

Timestamp:

Sep 2, 2009, 10:28:15 PM (15 years ago)

Author:

murphpo

Comment:

--

OFDM/MIMO/Docs/PHYDetails

@@ -13 +13 @@
 
 '''2x2 multiplexing''': this mode  uses spatial multiplexing to transmit and receive from both antennas. This scheme doubles the data rate (vs. SISO), as two symbols are transmitted with each channel use. But this mode is less reliable than SISO or Alamouti, since a given data bit is transmitted from only one antenna (diversity = 1).
+
+WARPPHY provides a function to configure the PHY and antenna modes from user code:
+{{{
+#!C
+warpphy_setAntennaMode(txMode, rxMode);
+}}}
+
+''txMode'' and ''rxMode'' must be selected from the values below (defined in [source:/PlatformSupport/WARPMAC/warpphy.h warpphy.h]). Remember that the PHY modes (SISO, Alamouti and multiplexing) don't interoperate over-the-air; every node must be configured with the same PHY mode. The antenna mode (choice of SISO antenna, selection diversity, etc.) can be configured per-node.
+
+'''Tx Modes'''[[BR]]
+ * {{{TX_ANTMODE_SISO_ANTA}}}: SISO on antenna A
+ * {{{TX_ANTMODE_SISO_ANTB}}}: SISO on antenna B
+ * {{{TX_ANTMODE_MULTPLX}}}: 2-antenna spatial multiplexing
+ * {{{TX_ANTMODE_MULTPLX_SWAPPED}}}: 2-antenna spatial multiplexing, antennas swapped
+ * {{{TX_ANTMODE_ALAMOUTI_2ANT}}}: 2-antenna Alamouti
+ * {{{TX_ANTMODE_ALAMOUTI_2ANT_SWAPPED}}}: 2-antenna Alamouti, antennas swapped
+ * {{{TX_ANTMODE_ALAMOUTI_ANTA}}}: 1-antenna Alamouti, stream A on antenna A
+ * {{{TX_ANTMODE_ALAMOUTI_ANTB}}}: 1-antenna Alamouti, stream B on antenna B
+ * {{{TX_ANTMODE_ALAMOUTI_ANTA_SWAPPED}}}: 1-antenna Alamouti, stream B on antenna A
+ * {{{TX_ANTMODE_ALAMOUTI_ANTB_SWAPPED}}}: 1-antenna Alamouti, stream A on antenna B
+
+'''Rx Modes'''[[BR]]
+ * {{{RX_ANTMODE_SISO_ANTA}}}: SISO on antenna A
+ * {{{RX_ANTMODE_SISO_ANTB}}}: SISO on antenna B
+ * {{{RX_ANTMODE_SISO_SELDIV}}}: SISO using selection diversity on both antennas
+ * {{{RX_ANTMODE_MULTPLX}}}: 2-antenna multiplexing
+ * {{{RX_ANTMODE_ALAMOUTI_ANTA}}}: 1-antenna Alamouti on antenna A
+ * {{{RX_ANTMODE_ALAMOUTI_ANTB}}}: 1-antenna Alamouti on antenna B
+ * {{{RX_ANTMODE_ALAMOUTI_SELDIV}}}: Alamouti using selection diversity on both antennas
+
 
 == OFDM Parameters ==