doc: Fix errors found by codespell and aspell

src/click/model/ipv4-click-routing.cc

@@ -818,7 +818,7 @@ simclick_sim_command(simclick_node_t* simnode, int cmd, ...)
         // Try to fill the buffer with up to size bytes.
         // If this is not enough space, write the required buffer size into
         // the size variable and return an error code.
-        // Otherwise return the bytes actually writte into the buffer in size.
+        // Otherwise return the bytes actually written into the buffer in size.
 
         // Append key/value pair, separated by \0.
         std::map<std::string, std::string> defines = clickInstance->GetDefines();

src/core/model/int64x64-cairo.h

@@ -296,7 +296,7 @@ class int64x64_t
     /**
      * Compute the inverse of an integer value.
      *
-     * Ordinary division by an integer would be limited to 64 bits of precsion.
+     * Ordinary division by an integer would be limited to 64 bits of precision.
      * Instead, we multiply by the 128-bit inverse of the divisor.
      * This function computes the inverse to 128-bit precision.
      * MulByInvert() then completes the division.

src/fd-net-device/examples/realtime-fd2fd-onoff.cc

@@ -28,7 +28,7 @@
 //  |  fd-net-device |--------------|  fd-net-device |
 //  +----------------+              +----------------+
 //
-// This example is aimed at meassuring the thoughput of the FdNetDevice
+// This example is aimed at measuring the thoughput of the FdNetDevice
 // in a pure simulation. For this purpose two FdNetDevices, attached to
 // different nodes but in a same simulation, are connected using a socket pair.
 // TCP traffic is sent at a saturating data rate. Then the thoughput can

src/internet/model/global-route-manager-impl.cc

@@ -1137,7 +1137,7 @@ GlobalRouteManagerImpl::SPFNexthopCalculation(SPFVertex* v,
         // Above, when we were considering the root node, we calculated the next hop
         // address and outgoing interface required to get off of the root network.
         // At this point, we are further away from the root network along one of the
-        // (shortest) paths.  So the next hop and outoing interface remain the same
+        // (shortest) paths.  So the next hop and outgoing interface remain the same
         // (are inherited).
         //
         w->InheritAllRootExitDirections(v);

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

@@ -1037,7 +1037,7 @@ In detail, the index :math:`\widehat{i}_{k}(t)` to which RBG :math:`k` is assign
    \widehat{i}_{k}(t) = \underset{j=1,...,N}{\operatorname{argmax}}
     \left( \frac{ R_{j}(k,t) }{ T_\mathrm{j}(t) } \right)
 
-where :math:`T_{j}(t)` is the past througput performance perceived by the
+where :math:`T_{j}(t)` is the past throughput performance perceived by the
 user :math:`j`.
 According to the above scheduling algorithm, a user can be allocated to
 different RBGs, which can be either adjacent or not, depending on the current
@@ -4252,7 +4252,7 @@ Distributed Fractional Frequency Reuse
 This Distributed Fractional Frequency Reuse Algorithm was presented in [DKimura2012]_. It
 automatically optimizes cell-edge sub-bands by focusing on user distribution (in particular,
 receive-power distribution). This algorithm adaptively selects RBs for cell-edge sub-band on
-basis of coordination information from adjecent cells and notifies the base stations of the
+basis of coordination information from adjacent cells and notifies the base stations of the
 adjacent cells, which RBs it selected to use in edge sub-band. The base station of each cell
 uses the received information and the following equation to compute cell-edge-band metric
 :math:`A_{k}` for each RB.

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

@@ -1945,7 +1945,7 @@ EPC scenarios.
 With Distributed Fractional Frequency Reuse  Algorithm, eNb uses entire cell bandwidth and there can
 be two sub-bands: center sub-band and edge sub-band . Within these sub-bands UEs can be served with
 different power level. Algorithm adaptively selects RBs for cell-edge sub-band on basis of
-coordination information (i.e. RNTP) from adjecent cells and notifies the base stations of the adjacent cells,
+coordination information (i.e. RNTP) from adjacent cells and notifies the base stations of the adjacent cells,
 which RBs it selected to use in edge sub-band. If there are no UE classified as edge UE in cell,
 eNB will not use any RBs as edge sub-band.
 

src/lte/examples/lena-x2-handover.cc

@@ -31,7 +31,7 @@ using namespace ns3;
 NS_LOG_COMPONENT_DEFINE("LenaX2HandoverExample");
 
 /**
- * UE Connection established noticication.
+ * UE Connection established notification.
  *
  * \param context The context.
  * \param imsi The IMSI of the connected terminal.
@@ -82,7 +82,7 @@ NotifyHandoverEndOkUe(std::string context, uint64_t imsi, uint16_t cellid, uint1
 }
 
 /**
- * eNB Connection established noticication.
+ * eNB Connection established notification.
  *
  * \param context The context.
  * \param imsi The IMSI of the connected terminal.

src/lte/test/lte-test-rlc-am-e2e.cc

@@ -270,7 +270,7 @@ LteRlcAmE2eTestCase::DoRun()
     //      retransmitted is much lower. This effect can be best noteed
     //      at very high loss rates, and can be adjusted by timers and
     //      params.
-    //   2) throuhgput is not meaningful, you need to evaluate the time
+    //   2) throughput is not meaningful, you need to evaluate the time
     //      it takes for all PDUs to be (re)transmitted successfully,
     //      i.e., how long it takes for the TX and reTX queues to deplete.
 

src/spectrum/doc/spectrum.rst

@@ -177,7 +177,7 @@ of the available implementations:
    interference model (implemented in ``SpectrumInterference``)
    together with an error model based on Shannon capacity (described
    in [Baldo2009Spectrum]_ and implemented in ``SpectrumErrorModel``. This PHY
-   uses the ``GenericPhy`` interface. Its addditional custom signal
+   uses the ``GenericPhy`` interface. Its additional custom signal
    parameters are defined in ``HalfDuplexIdealPhySignalParameters``.
 
  * ``WifiSpectrumValueHelper`` is an helper object that makes it easy

src/spectrum/model/spectrum-converter.h

@@ -44,7 +44,7 @@ class SpectrumConverter : public SimpleRefCount<SpectrumConverter>
     /**
      * Create a SpectrumConverter class that will be able to convert ValueVsFreq
      * instances defined over one SpectrumModel to corresponding ValueVsFreq
-     * instances defined over a diffent SpectrumModel
+     * instances defined over a different SpectrumModel
      *
      * @param fromSpectrumModel the SpectrumModel to convert from
      * @param toSpectrumModel the SpectrumModel to convert to

src/spectrum/model/three-gpp-channel-model.cc

@@ -1046,7 +1046,7 @@ ThreeGppChannelModel::GetThreeGppTable(Ptr<const ChannelCondition> channelCondit
     }
     else
     {
-        NS_FATAL_ERROR("unkonw scenarios");
+        NS_FATAL_ERROR("unknown scenarios");
     }
 
     return table3gpp;