Update PEM model with new BLER curves based on standard ECR

src/lte/doc/Makefile

@@ -27,9 +27,6 @@ IMAGES_DIA = \
 # specify eps figures from which .png and .pdf figures need to be built
 
 IMAGES_EPS = \
-	$(FIGURES)/MCS_2_test.eps \
-	$(FIGURES)/MCS_12_test.eps \
-	$(FIGURES)/MCS_14_test.eps \
 	$(FIGURES)/lena-dual-stripe.eps \
 	$(FIGURES)/lte-mcs-index.eps \
 	$(FIGURES)/lenaThrTestCase1.eps \
@@ -96,8 +93,15 @@ IMAGES_NOBUILD = $(FIGURES)/fading_pedestrian.png \
 	$(FIGURES)/MCS_17_20.png \
 	$(FIGURES)/MCS_21_24.pdf \
 	$(FIGURES)/MCS_21_24.png \
-	$(FIGURES)/MCS_25_27.pdf \
-	$(FIGURES)/MCS_25_27.png \
+	$(FIGURES)/MCS_25_28.pdf \
+	$(FIGURES)/MCS_29_29.pdf \
+	$(FIGURES)/MCS_29_29.png \
+	$(FIGURES)/MCS_2_test.png \
+	$(FIGURES)/MCS_2_test.pdf \
+	$(FIGURES)/MCS_12_test.png \
+	$(FIGURES)/MCS_12_test.pdf \
+	$(FIGURES)/MCS_16_test.png \
+	$(FIGURES)/MCS_16_test.pdf \
 	$(FIGURES)/lte-phy-interference.png \
 	$(FIGURES)/lte-phy-interference.pdf \
 	$(FIGURES)/helpers.png \

src/lte/doc/source/lte-design.rst

@@ -1255,15 +1255,26 @@ The BLER perfomance of all MCS obtained with the link level simulator are plotte
 
    BLER for MCS 21, 22, 23 and 24.
 
-.. _fig-mcs-25-27-ber:
 
-.. figure:: figures/MCS_25_27.*
+.. _fig-mcs-25-28-ber:
+
+.. figure:: figures/MCS_25_28.*
    :width: 900px
    :align: center
    :height: 700px
 
 
-   BLER for MCS 25, 26 and 27.
+   BLER for MCS 25, 26, 27 and 28.
+
+.. _fig-mcs-29-29-ber:
+
+.. figure:: figures/MCS_29_29.*
+   :width: 900px
+   :align: center
+   :height: 700px
+
+
+   BLER for MCS 29.
 
 
 

src/lte/doc/source/lte-testing.rst

@@ -372,14 +372,12 @@ The test suite ``lte-phy-error-model`` generates nine test cases with single eNB
 
 The parameters of the nine test cases are reported in the following:
 
- #. 4 UEs placed 898 meters far from the eNB, which implies the use of MCS 2 (SINR of -2.21 dB) and a TB of 176 bits, that in turns produce a BER of 0.19 (see point A in figure :ref:`fig-mcs-2-test`).
- #. 3 UEs placed 900 meters far from the eNB, which implies the use of MCS 2 (SINR of -2.25 dB) and a TB of 328 bits, that in turns produce a BER of 0.09 (see point B in figure :ref:`fig-mcs-2-test`).
- #. 2 UEs placed 920 meters far from the eNB, which implies the use of MCS 2 (SINR of -2.61 dB) and a TB of 72 bits, that in turns produce a BER of 0.123 (see point D in figure :ref:`fig-mcs-2-test`).
- #. 1 UE placed 930 meters far from the eNB, which implies the use of MCS 2 (SINR of -2.79 dB) and a TB of 72 bits, that in turns produce a BER of 0.9 (see point D in figure :ref:`fig-mcs-2-test`).
- #. 1 UE placed 538 meters far from the eNB, which implies the use of MCS 12 (SINR of 4.19 dB) and a TB of 4776 bits, that in turns produce a BER of 0.017 (see point E in figure :ref:`fig-mcs-12-test`).
- #. 3 UEs placed 538 meters far from the eNB, which implies the use of MCS 12 (SINR of 4.19 dB) and a TB of 1608 bits, that in turns produce a BER of 0.23 (see point F in figure :ref:`fig-mcs-12-test`).
- #. 7 UEs placed 538 meters far from the eNB, which implies the use of MCS 12 (SINR of 4.19 dB) and a TB of 376 bits, that in turns produce a BER of 0.72 (see point G in figure :ref:`fig-mcs-12-test`).
- #. 1 UE placed 500 meters far from the eNB, which implies the use of MCS 14 (SINR of 5.53 dB) and a TB of 6248 bits (segmented in 2 CBs of 3136 bits each one), that in turns produce a BER of 0.18, since each CB has CBLER equal to 0.096 (see point H in figure :ref:`fig-mcs-14-test`).
+ #. 4 UEs placed 1800 meters far from the eNB, which implies the use of MCS 2 (SINR of -5.51 dB) and a TB of 256 bits, that in turns produce a BER of 0.33 (see point A in figure :ref:`fig-mcs-2-test`).
+ #. 2 UEs placed 1800 meters far from the eNB, which implies the use of MCS 2 (SINR of -5.51 dB) and a TB of 528 bits, that in turns produce a BER of 0.11 (see point B in figure :ref:`fig-mcs-2-test`).
+ #. 1 UE placed 1800 meters far from the eNB, which implies the use of MCS 2 (SINR of -5.51 dB) and a TB of 1088 bits, that in turns produce a BER of 0.02 (see point C in figure :ref:`fig-mcs-2-test`).
+ #. 1 UE placed 600 meters far from the eNB, which implies the use of MCS 12 (SINR of 4.43 dB) and a TB of 4800 bits, that in turns produce a BER of 0.3 (see point D in figure :ref:`fig-mcs-12-test`).
+ #. 3 UEs placed 600 meters far from the eNB, which implies the use of MCS 12 (SINR of 4.43 dB) and a TB of 1632 bits, that in turns produce a BER of 0.55 (see point E in figure :ref:`fig-mcs-12-test`).
+ #. 1 UE placed 470 meters far from the eNB, which implies the use of MCS 16 (SINR of 8.48 dB) and a TB of 7272 bits (segmented in 2 CBs of 3648 and 3584 bits), that in turns produce a BER of 0.14, since each CB has CBLER equal to 0.075 (see point F in figure :ref:`fig-mcs-14-test`).
 
 
 .. _fig-mcs-2-test:
@@ -388,21 +386,21 @@ The parameters of the nine test cases are reported in the following:
    :align: center
 
 
-   BLER for tests 1, 2, 3, 4.
+   BLER for tests 1, 2, 3.
 
 .. _fig-mcs-12-test:
 
 .. figure:: figures/MCS_12_test.*
    :align: center
 
-   BLER for tests 5, 6, 7.
+   BLER for tests 4, 5.
 
 .. _fig-mcs-14-test:
 
-.. figure:: figures/MCS_14_test.*
+.. figure:: figures/MCS_16_test.*
    :align: center
 
-   BLER for test 8.
+   BLER for test 6.
 
 
 The test verifies that in each case the expected number of packets received correct corresponds to a Bernoulli distribution with a confidence interval of 95%, where the probability of success in each trail is :math:`1-BER` and :math:`n` is the total number of packet sent.

src/lte/model/lte-mi-error-model.h

@@ -44,9 +44,9 @@
 
 namespace ns3 {
   
-  const uint16_t MI_MAP_QPSK_SIZE = 411;
-  const uint16_t MI_MAP_16QAM_SIZE = 601;
-  const uint16_t MI_MAP_64QAM_SIZE = 676;
+  const uint16_t MI_MAP_QPSK_SIZE = 766;
+  const uint16_t MI_MAP_16QAM_SIZE = 843;
+  const uint16_t MI_MAP_64QAM_SIZE = 725;
   
 
 

src/lte/test/lte-test-phy-error-model.cc

@@ -58,22 +58,19 @@ LenaTestPhyErrorModelrSuite::LenaTestPhyErrorModelrSuite ()
 {
   NS_LOG_INFO ("creating LenaTestPhyErrorModelTestCase");
 
-  // MCS 2 TB size of 256 bits BER 0.19 SINR -2.21
-   AddTestCase (new LenaPhyErrorModelTestCase (4, 898, 32, 0.19, 25));
-// MCS 2 TB size of 328 bits BER 0.09 SINR -2.25
-   AddTestCase (new LenaPhyErrorModelTestCase (3, 900, 41, 0.09, 18));
-// MCS 2 TB size of 520 bits BER 0.123 SINR -2.61
-   AddTestCase (new LenaPhyErrorModelTestCase (2, 920, 65, 0.123, 21));
-// MCS 2 TB size of 1080 bits BER 0.097 SINR -2.79
-   AddTestCase (new LenaPhyErrorModelTestCase (1, 930, 135, 0.097, 19));
-  // MCS 12 TB size of 4776 bits  BER 0.017  SINR 6.22
-   AddTestCase (new LenaPhyErrorModelTestCase (1, 538, 597, 0.017, 8));
-// MCS 12 TB size of 1608 bits  BER 0.23  SINR 6.22
-  AddTestCase (new LenaPhyErrorModelTestCase (3, 538, 201, 0.23, 26));
-  // MCS 12 TB size of 376 bits  BER 0.72  SINR 6.22
-   AddTestCase (new LenaPhyErrorModelTestCase (7,538, 47, 0.72, 28));
-// MCS 14 TB size of 6248 bits (3136 x 2) BER 0.18 (0.096 x 2) SINR 5.53
-   AddTestCase (new LenaPhyErrorModelTestCase (1, 500, 781, 0.18, 24));
+  // MCS 2 TB size of 256 bits BER 0.33 SINR -5.51
+   AddTestCase (new LenaPhyErrorModelTestCase (4, 1800, 32, 0.33, 29));
+// MCS 2 TB size of 528 bits BER 0.11 SINR -5.51
+   AddTestCase (new LenaPhyErrorModelTestCase (2, 1800, 66, 0.11, 20));
+// MCS 2 TB size of 1088 bits BER 0.02 SINR -5.51
+  AddTestCase (new LenaPhyErrorModelTestCase (1, 1800, 136, 0.02, 9));
+  // MCS 12 TB size of 4800 bits  BER 0.3  SINR 4.43
+   AddTestCase (new LenaPhyErrorModelTestCase (1, 600, 600, 0.3, 29));
+// MCS 12 TB size of 1632 bits  BER 0.55  SINR 4.43
+  AddTestCase (new LenaPhyErrorModelTestCase (3, 600, 204, 0.55, 31));
+// MCS 16 TB size of 7272 bits (3648 x 3584) BER 0.14 SINR 8.48
+// BER 0.14 = 1 - ((1-0.075)*(1-0.075))
+   AddTestCase (new LenaPhyErrorModelTestCase (1, 470, 781, 0.14, 22));
 
  
 
@@ -107,7 +104,7 @@ void
 LenaPhyErrorModelTestCase::DoRun (void)
 {
   
-   double ber = 0.01;
+   double ber = 0.03;
   Config::SetDefault ("ns3::LteAmc::Ber", DoubleValue (ber));
   Config::SetDefault ("ns3::LteAmc::AmcModel", EnumValue (LteAmc::PiroEW2010));
   Config::SetDefault ("ns3::LteSpectrumPhy::PemEnabled", BooleanValue (true));
@@ -153,6 +150,7 @@ LenaPhyErrorModelTestCase::DoRun (void)
 //   LogComponentEnable ("LteAmc", LOG_LEVEL_ALL);
 //   
   LogComponentDisableAll (LOG_LEVEL_ALL);
+  
   LogComponentEnable ("LenaTestPhyErrorModel", LOG_LEVEL_ALL);
 
 
@@ -242,7 +240,7 @@ LenaPhyErrorModelTestCase::DoRun (void)
       double txed = rlcStats->GetDlTxData (imsi, lcId);
       int n = txed / m_tbSize;
       int lambda = (double)dlDataRxed.at (i) / m_tbSize;
-      double ber = 2.0 - ((double)dlDataRxed.at (i)/txed);
+      double ber = 1.0 - ((double)dlDataRxed.at (i)/txed);
       double np = n-n*m_berRef;
       NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at (i) << " txed " << txed << " BER " << ber << " Err " << fabs (m_berRef - ber) << " lambda " << lambda << " np " << np << " difference " << abs(lambda - np) << " quantile " << m_bernQuantile);
       // the quantiles are evaluated offline according to a Bernoulli 

src/lte/test/reference/bernuolliDistribution.m

@@ -2,7 +2,7 @@
 % related to phy error model test
 
 n = 1000;
-p_vect = [0.19 0.09 0.123 0.097 0.017 0.23 0.72 0.18];
+p_vect = [0.33 0.11 0.02 0.3 0.55 0.14];
 for i=1:length(p_vect)
   p = p_vect(i)
   cdf = 0.0;