omnet++ | 易学教程

Maximum transmission range vs maximum interference distance

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I am wondering if the theoretical maximum transmission range under Omnet++ (veins framework) is the same as the maximum interference distance. I want to confirm some calculations done before by another person, Last one concludes that the transmission range is equal to : 127m for Txpower = -80dbm & sensitivity = 10mW 300m for Txpower = -80dbm & sensitivity = 15.5mW 1000m for Txpower = -94dbm & sensitivity = 20mW For all calculations: path loss coeffcient alpha = 2 & frequency = 5890Mhz On my side, I get respectively 127m, 159m and 907m. I am not able to know why to much difference. I use the

Building my own veins scenario

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问题 I need to build a scenario from scratch. Two vehicles moving on a straight road. There is a single rsu. The rsu brodcasts the speed value every 10s. Vehicles should slow down to reach that value. My question is can i consider the msg as a beacon? If yes, how can i set the beacon msg in the rsu application? And if no, how to implement such scenario 回答1: You can have a look at the following answered questions, since they are somewhat similar to your question or at least give you some insight in

what policy is based vehicle rerouting in case of accident?

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问题 I'm doing a scenario where there is 1 route at the beginning and then it splits into 3, then merges into 1 again. I'm stopping the car in the first lane, the second car stops also, the third one reroutes in the middle lane, the fourth goes to the queue, the fifth reroutes, the sixth goes to the queue, the seventh reroutes.....why is it behaving like that? I can't understand where to change this "balancing" or "threshold". Any suggestion? 回答1: The Veins 4.6 sample application behaves as

Maximum transmission range vs maximum interference distance

阅读更多关于 Maximum transmission range vs maximum interference distance

问题 I am wondering if the theoretical maximum transmission range under Omnet++ (veins framework) is the same as the maximum interference distance. I want to confirm some calculations done before by another person, Last one concludes that the transmission range is equal to : 127m for Txpower = -80dbm & sensitivity = 10mW 300m for Txpower = -80dbm & sensitivity = 15.5mW 1000m for Txpower = -94dbm & sensitivity = 20mW For all calculations: path loss coeffcient alpha = 2 & frequency = 5890Mhz On my

Calculating end-to-end delay for SimpleServerApp in Veins-LTE

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问题 I'm trying to calculate end-to-end delay for SimpleServerApp in Veins-LTE and I'm unable to get any results, when I open the result file all the statistics related to the delay are 0 or NaN. I looked in the Tic-Toc tutorial and tried to do something like that, but that way I didn't even get the statistics: On the module: delayVector.record(delay); delayHist.collect(delay); and when calling finish(): delayHist.recordAs("delayFinish"); where simtime_t delay; cOutVector delayVector;