NS3-新增模块和调试

本周，应老师要求，为NS3新增lorawan-classB的模块。

模块的github地址：https://github.com/ConstantJoe/ns3-lorawan-class-B/tree/master/lorawan

下面是碰到的问题和经验总结。

1.如何在NS3.29中添加模块

To install this module, you should do as follow:
1. Download ns-3 latest version (ns-3-27) at [ns-3 main page](https://www.nsnam.org/ns-3-27).
2. Extract ns-allinone-3.27.tar.bz2 file.
3. Download ns3 lora module, then copy it ./src folder inside ns-allinone-3.27 folder.
4. Run three next statements to build source code:
```
	~/ns-allinone-3.27/ns-3$ ./waf clean
	~/ns-allinone-3.27/ns-3$ ./waf configure --enable-tests --enable-examples
	~/ns-allinone-3.27/ns-3$ ./waf build	
```

## Running the tests and examples

To test ns3 lora module, you run this statement:
```
	~/ns-allinone-3.27/ns-3$ ./test.py -s lora-node -m -t lora-node.txt
```
To run example of ns3 lora module, you run this statement:
```
	~/ns-allinone-3.27/ns-3$ ./waf --run lora-example
来源 ：https://github.com/drakkar-lig/lora-ns3-module/blob/master/README.md

2.新装模块时碰到的问题
   1.build过程中报错

lorawan/helper/lorawan-helper.cc:215:66: error: ‘DLT_LORATAP’ is not a member of ‘ns3::PcapHelper’ PcapHelper::DLT_LORATAP); 因为使用的是C++编程语言，我对这方面了解很少（本科时候的欠账呀）。一开始盲目去谷歌搜索（不得不说，谷歌在这方面是最好用的搜索引擎了）找不到相关信息。后来，静下心来，查看源文件 lorawan/helper/lorawan-helper.cc:， 215gg，定位到报错位置。发现作者细心的写了注释。 PcapHelper：： DLT_LORATAP, 而后定位类PcapHelper 位置：ns-3.29/build/ns3/tracer_helper.h. 根据注释，新增DLT_LORATAP = 270 解决问题。经验：报错了要去查看源文件，不盲目搜索 2.而后使用 ./waf --run 命令运行该模块中的example 碰到了一连串的问题，安装eclipse，在这个软件里编译和运行ns3模块，各个函数之间的依赖关系变得直观了。 ns3联合eclipse的安装方法（亲测可用）： http://blog.sina.com.cn/s/blog_5584ff150102yixl.html 如果碰到找不到路径的问题，请仔细确认，是使用绝对路径还是相对路径。那篇博客中的在我的eclipse june 2018（4.8.0）中未找到，暂时没发现影响。

目前实现了对example中error问题的定位，具体的错误原因还待继续确定。。。。

具体碰到的问题： NS版本 3.28 ，解决方法同3.29 问题：lorawan/helper/lorawan-helper.cc:215:66: error: ‘DLT_LORATAP’ is not a member of ‘ns3::PcapHelper’ PcapHelper::DLT_LORATAP); 解决方法：在ns-allinone-3.28/ns-3.28/build/ns3/tracer_helper.h line 61中新增 DLT_LORATAP = 270 运行example时, 3.28和3.29有相同的问题不能运行的example 0. lorawan-error-distance-plot.cc 问题：找不到该模块解决方法在lorawan/examples/wscript 里将该example加进去新问题：1. compling出错，定位问题： lorawan-error-distance-plot.cc line58 函数LoRaWANErrorDistanceCallback 的参数LoRaWANDataIndicationParams’ was not declared in this scope 1， 3 有相同的问题 1.lorawan-unconfirmed-data-up-example.cc 报错位置：line104 定位文件位置 /ns-allinone-3.29/ns-3.29/build/ns3/callback.h line 1449， traced-callback.h, line=280 msg="Incompatible types. (feed to "c++filt -t" if needed) got=CallbackImpl, std::allocator >,ns3::Time,ns3::LoRaWANPhyEnumeration,ns3::LoRaWANPhyEnumeration> expected=CallbackImpl, std::allocator >,ns3::LoRaWANPhyEnumeration,ns3::LoRaWANPhyEnumeration>", file=./ns3/callback.h, line=1449 msg="when connecting to phy0", file=./ns3/traced-callback.h, line=280 terminate called without an active exception 3.lorawan-simultaneous-unconfirmed-data-up-example msg="Incompatible types. (feed to "c++filt -t" if needed) got=CallbackImpl, std::allocator >,ns3::Time,ns3::LoRaWANPhyEnumeration,ns3::LoRaWANPhyEnumeration> expected=CallbackImpl, std::allocator >,ns3::LoRaWANPhyEnumeration,ns3::LoRaWANPhyEnumeration>", file=./ns3/callback.h, line=1449 msg="when connecting to phy0", file=./ns3/traced-callback.h, line=280 terminate called without an active exception 2. lorawan-phy-example.cc 跑到 run时报错000 LoRaWANPhy:LoRaWANPhy(0x7fffc91a5560, 0) LoRaWANPhy:ChangeTrxState(): 0x7fffc91a5560 state: 0 -> 0 LoRaWANPhy:ChangeTrxState(): 0x7fffc91a5560 state: 0 -> 0 LoRaWANPhy:LoRaWANPhy(0x7fffc91a5560, 0) LoRaWANPhy:ChangeTrxState(): 0x7fffc91a5560 state: 0 -> 0 LoRaWANPhy:ChangeTrxState(): 0x7fffc91a5560 state: 0 -> 0 SingleModelSpectrumChannel:SingleModelSpectrumChannel(0x562edfd9bcf0) SingleModelSpectrumChannel:GetTypeId() LoRaWANPhy:SetChannel(0x562edfda74c0, 0x562edfd9bcf0) LoRaWANPhy:SetChannel(0x562edfda76b0, 0x562edfd9bcf0) SingleModelSpectrumChannel:AddRx(0x562edfd9bcf0, 0x562edfda74c0) SingleModelSpectrumChannel:AddRx(0x562edfd9bcf0, 0x562edfda76b0) LoRaWANPhy:SetMobility(0x562edfda74c0, 0x562edfd8cb90) LoRaWANPhy:SetMobility(0x562edfda76b0, 0x562edfd8e510) LoRaWANPhy:SetSetTRXStateConfirmCallback(0x562edfda74c0) LoRaWANPhy:SetSetTRXStateConfirmCallback(0x562edfda76b0) LoRaWANPhy:SetTRXStateRequest(0x562edfda74c0, 3) LoRaWANPhy:SetTRXStateRequest(): Trying to set m_trxState from 0 to 3 LoRaWANPhy:ChangeTrxState(): 0x562edfda74c0 state: 0 -> 3 At: +0.0ns Received Set TRX Confirm: 3 LoRaWANPhy:SetTRXStateRequest(0x562edfda76b0, 2) LoRaWANPhy:SetTRXStateRequest(): Trying to set m_trxState from 0 to 2 LoRaWANPhy:ChangeTrxState(): 0x562edfda76b0 state: 0 -> 2 At: +0.0ns Received Set TRX Confirm: 2 LoRaWANPhy:SetPdDataIndicationCallback(0x562edfda76b0) At: +1000000000.0ns Sending one frame LoRaWANPhy:PdDataRequest(0x562edfda74c0) LoRaWANPhy:PdDataRequest(): 0x562edfda74c0 m_trxState = 3 LoRaWANPhy:CalculateTxTime(0x562edfda74c0) LoRaWANPhy:CalculateTxTime(): 0x562edfda74c0: 12|0|10|0|16|8|663552uS SingleModelSpectrumChannel:StartTx(0x562edfd9bcf0, 0, +663552000.0ns, 0x562edfda74c0) assert failed. cond="txParams->psd", msg="NULL txPsd", file=../src/spectrum/model/single-model-spectrum-channel.cc, line=86 terminate called without an active exception 定位 single-model-spectrum-channel.cc void singleModelSpectrumChannel :: StartTx(Ptr( --command-template="gdb --args %s ").http://blog.sina.com.cn/s/blog_5584ff150102yixl.html

NS3-新增模块和调试

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