From 7b3f2a4bcd66424848b9f1afe79fb63708104225 Mon Sep 17 00:00:00 2001
From: ericps1 <ericps1@vt.edu>
Date: Thu, 19 Nov 2015 13:13:33 -0500
Subject: [PATCH] Fixed bug in set_tx_subcarriers.

---
 scenarios/Two_Node_FDD_Network.cfg | 34 +++++++++++++++---------------
 src/ECR.cpp                        |  4 ++--
 2 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/scenarios/Two_Node_FDD_Network.cfg b/scenarios/Two_Node_FDD_Network.cfg
index 5347155..f865c2f 100644
--- a/scenarios/Two_Node_FDD_Network.cfg
+++ b/scenarios/Two_Node_FDD_Network.cfg
@@ -35,29 +35,29 @@ node1: {
     
 	// initial USRP settings
 	rx_freq = 762.5e6;
-    rx_rate = 5e6;
-    rx_gain = 10.0;
+    rx_rate = 2.5e6;
+    rx_gain = 15.0;
     tx_freq = 767.5e6;
-    tx_rate = 5e6;
-    tx_gain = 10.0;
+    tx_rate = 2.5e6;
+    tx_gain = 15.0;
     
     // initial liquid OFDM settings
     duplex = "FDD";
     tx_gain_soft = -12.0;
-    tx_modulation = "qpsk";
+    tx_modulation = "qam4";
     tx_crc = "crc32";
-    tx_fec0 = "v29";
+    tx_fec0 = "v27";
     tx_fec1 = "none";
-    tx_delay_us = 1e3;
+    tx_delay_us = 5e2;
 
 	tx_subcarriers = 32;
-	tx_subcarrier_alloc_method = "default";
+	tx_subcarrier_alloc_method = "standard";
 	tx_guard_subcarriers = 4;
 	tx_central_nulls = 6;
 	tx_pilot_freq = 4;
 
 	rx_subcarriers = 32;
-	rx_subcarrier_alloc_method = "default";
+	rx_subcarrier_alloc_method = "standard";
 	rx_guard_subcarriers = 4;
 	rx_central_nulls = 6;
 	rx_pilot_freq = 4;
@@ -91,23 +91,23 @@ node2: {
     
     // initial USRP settings
     rx_freq = 767.5e6;
-    rx_rate = 5e6;
-    rx_gain = 10.0; 
+    rx_rate = 2.5e6;
+    rx_gain = 15.0; 
 	tx_freq = 762.5e6;
-    tx_rate = 5e6;
-    tx_gain = 10.0;
+    tx_rate = 2.5e6;
+    tx_gain = 15.0;
     
 	// initial liquid OFDM settings
     duplex = "FDD";
     tx_gain_soft = -12.0;
-    tx_modulation = "qpsk";
+    tx_modulation = "qam4";
     tx_crc = "crc32";
-    tx_fec0 = "v29";
+    tx_fec0 = "v27";
     tx_fec1 = "none";
     tx_delay_us = 1e3;
 
 	tx_subcarriers = 32;
-	tx_subcarrier_alloc_method = "default";
+	tx_subcarrier_alloc_method = "custom";
 	tx_subcarrier_alloc: {
 		// guard band nulls
 		sc_type_1 = "null";
@@ -141,7 +141,7 @@ node2: {
 	}
 
 	rx_subcarriers = 32;
-	rx_subcarrier_alloc_method = "default";
+	rx_subcarrier_alloc_method = "custom";
 	rx_subcarrier_alloc: {
 		// guard band nulls
 		sc_type_1 = "null";
diff --git a/src/ECR.cpp b/src/ECR.cpp
index aaea0c8..7565009 100644
--- a/src/ECR.cpp
+++ b/src/ECR.cpp
@@ -522,9 +522,9 @@ void ExtensibleCognitiveRadio::set_tx_subcarrier_alloc(char *_subcarrierAlloc) {
   // destroy frame gen, set subcarrier allocation, recreate frame gen
   if (_subcarrierAlloc) {
     tx_params_updated.subcarrierAlloc = (unsigned char *)realloc(
-        (void *)tx_params.subcarrierAlloc, tx_params.numSubcarriers);
+        (void *)tx_params_updated.subcarrierAlloc, tx_params_updated.numSubcarriers);
     memcpy(tx_params_updated.subcarrierAlloc, _subcarrierAlloc,
-           tx_params.numSubcarriers);
+           tx_params_updated.numSubcarriers);
   } else {
     free(tx_params_updated.subcarrierAlloc);
     tx_params_updated.subcarrierAlloc = NULL;