<div dir="ltr">Dear <span style="font-family:arial,sans-serif;font-size:14px">Alex,</span><div><font face="arial, sans-serif"><span style="font-size:14px"><br></span></font><div><span style="font-family:arial,sans-serif;font-size:14px">    We have tried to add Lte interface into the Car node based on the </span><font face="arial, sans-serif"><span style="font-size:14px">ndnsim-car2car sources.</span></font></div>
<div><font face="arial, sans-serif"><span style="font-size:14px">    </span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px">    In detail, we modified the car-relay.cc by adding the head files:</span></font></div>
<div style><font face="arial, sans-serif"><span style="font-size:14px">-------------------------------------------------------</span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px">       #include "ns3/lte-module.h"</span></font></div>
<div><font face="arial, sans-serif"><span style="font-size:14px">       #include "ns3/lte-helper.h"</span></font></div><div><font face="arial, sans-serif"><span style="font-size:14px">-------------------------------------------------------</span></font></div>
<div><font face="arial, sans-serif"><span style="font-size:14px"><br></span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px">     and the create LTE object codes:</span></font></div><div style>
<font face="arial, sans-serif"><span style="font-size:14px">------------------------------------------------------------------------------------------</span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px">       Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();</span></font></div>
<div style><font face="arial, sans-serif"><span style="font-size:14px">       NetDeviceContainer ueDevs = lteHelper->InstallUeDevice (nodes);.</span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px">------------------------------------------------------------------------------------------</span></font></div>
<div style><font face="arial, sans-serif"><span style="font-size:14px"><br></span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px">   When we conduct the "./waf", it shows the following errors:</span></font></div>
<div style><font face="arial, sans-serif"><span style="font-size:14px">----------------------------------------------------------------------------------------------</span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px"><div>
[11/11] cxxprogram: build/scenarios/car-relay.cc.3.o build/extensions/car-relay-tracer.cc.1.o build/extensions/custom-constant-velocity-mobility-model.cc.1.o build/extensions/geo-tag.cc.1.o build/extensions/highway-position-allocator.cc.1.o build/extensions/ndn-fw-v2v.cc.1.o build/extensions/ndn-v2v-net-device-face.cc.1.o build/extensions/v2v-tracer.cc.1.o -> build/car-relay</div>
<div>scenarios/car-relay.cc.3.o: In function `CreateObject<ns3::LteHelper>':</div><div>/usr/local/include/ns3-dev/ns3/object.h:393: undefined reference to `ns3::LteHelper::LteHelper()'</div><div>scenarios/car-relay.cc.3.o: In function `CompleteConstruct<ns3::LteHelper>':</div>
<div>/usr/local/include/ns3-dev/ns3/object.h:385: undefined reference to `ns3::LteHelper::GetTypeId()'</div><div>scenarios/car-relay.cc.3.o: In function `main':</div><div>/home/cheewii/ndnSIM/ndnSIM-nom-rapid-car2car/build/../scenarios/car-relay.cc:166: undefined reference to `ns3::LteHelper::InstallUeDevice(ns3::NodeContainer)'</div>
<div>collect2: error: ld returned 1 exit status</div><div>Waf: Leaving directory `/home/cheewii/ndnSIM/ndnSIM-nom-rapid-car2car/build'</div><div>--------------------------------------------------------------------------------</div>
</span></font></div><div style><br></div><div style><font face="arial, sans-serif"><span style="font-size:14px">It seems that the compiling is finished but there are some problems in the linking process with lte module, is it right?</span></font></div>
<div style><font face="arial, sans-serif"><span style="font-size:14px"><br></span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px">How can we reslove this problem?</span></font></div><div style>
<font face="arial, sans-serif"><span style="font-size:14px"><br></span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px">Thank you very much.</span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px"><br>
</span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px">cheewii</span></font></div><div style><font face="arial, sans-serif"><span style="font-size:14px"><br></span></font></div><div style>
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