Hi Soroush, What *do* you see when you ping? 802.11 uses retransmissions so 54% should still allow packets through in most cases. What does the stats say about drop frames?
Thanks, Anders On Sat, Dec 12, 2015 at 1:44 AM, [REDACTED] <[email protected]> wrote: > Thanks for your respond > I'm using index 4 which is for 11Mbps and I set pathloss 93 so then: > > -97 = -174 + 4dB + 10log(20M) > SINR = -93-(-97) > SINR=4 > and according to curve I have POR45.8 that means 54.2 losses, but I don't > see that when ping node-b from node-a . > Also, I've added some interference but it doesn't affect . > Am i missing some thing ? > I've include my configuration file. > > Thanks, > > <!-- 11Mpbs --> > <datarate index="4"> > <row sinr="1.0" por="0.0"/> > <row sinr="2.0" por="0.2"/> > <row sinr="3.0" por="8.9"/> > <row sinr="4.0" por="45.8"/> > <row sinr="5.0" por="82.5"/> > <row sinr="6.0" por="96.7"/> > <row sinr="7.0" por="99.6"/> > <row sinr="8.0" por="100.0"/> > </datarate> > > > > > <?xml version="1.0" encoding="UTF-8"?> > <!DOCTYPE platform SYSTEM "file:///usr/share/emane/dtd/platform.dtd"> > <platform> > <param name="otamanagerchannelenable" value="off"/> > <param name="eventservicegroup" value="224.1.2.8:45703"/> > <param name="eventservicedevice" value="lo"/> > <param name="controlportendpoint" value="0.0.0.0:47000"/> > > > <nem id="1" definition="srw.xml" transport="external"> > <param name="platformendpoint" value="10.99.0.100:8201"/> > <param name="transportendpoint" value="10.99.0.1:8301"/> > <transport definition="transvirtual.xml"> > <param name="address" value="10.100.0.1"/> > <param name="mask" value="255.255.255.0"/> > </transport> > <phy> > <param name="frequencyofinterest" value="1.755G"/> > <param name="frequency" value="1.755G"/> > </phy> > </nem> > > <nem id="2" definition="srw.xml" transport="external"> > <param name="platformendpoint" value="10.99.0.100:8202"/> > <param name="transportendpoint" value="10.99.0.2:8302"/> > <transport definition="transvirtual.xml"> > <param name="address" value="10.100.0.2"/> > <param name="mask" value="255.255.255.0"/> > </transport> > <phy> > <param name="frequencyofinterest" value="1.755G"/> > <param name="frequency" value="1.755G"/> > </phy> > </nem> > > <nem id="3" definition="srw.xml" transport="external"> > <param name="platformendpoint" value="10.99.0.100:8203"/> > <param name="transportendpoint" value="10.99.0.3:8303"/> > <transport definition="transvirtual.xml"> > <param name="address" value="10.100.0.3"/> > <param name="mask" value="255.255.255.0"/> > </transport> > <phy> > <param name="frequencyofinterest" value="1.755G"/> > <param name="frequency" value="1.755G"/> > </phy> > </nem> > > <nem id="4" definition="srw.xml" transport="external"> > <param name="platformendpoint" value="10.99.0.100:8204"/> > <param name="transportendpoint" value="10.99.0.4:8304"/> > <transport definition="transvirtual.xml"> > <param name="address" value="10.100.0.4"/> > <param name="mask" value="255.255.255.0"/> > </transport> > <phy> > <param name="frequencyofinterest" value="1.755G"/> > <param name="frequency" value="1.755G"/> > </phy> > </nem> > > <nem id="5" definition="srw.xml" transport="external"> > <param name="platformendpoint" value="10.99.0.100:8205"/> > <param name="transportendpoint" value="10.99.0.5:8305"/> > <transport definition="transvirtual.xml"> > <param name="address" value="10.100.0.5"/> > <param name="mask" value="255.255.255.0"/> > </transport> > <phy> > <param name="frequencyofinterest" value="1.755G"/> > <param name="frequency" value="1.755G"/> > </phy> > </nem> > > <nem id="6" definition="srw.xml" transport="external"> > <param name="platformendpoint" value="10.99.0.100:8206"/> > <param name="transportendpoint" value="10.99.0.6:8306"/> > <transport definition="transvirtual.xml"> > <param name="address" value="10.100.0.6"/> > <param name="mask" value="255.255.255.0"/> > </transport> > <phy> > <param name="frequencyofinterest" value="1.755G"/> > <param name="frequency" value="1.755G"/> > </phy> > </nem> > > <nem id="7" definition="srw.xml" transport="external"> > <param name="platformendpoint" value="10.99.0.100:8207"/> > <param name="transportendpoint" value="10.99.0.7:8307"/> > <transport definition="transvirtual.xml"> > <param name="address" value="10.100.0.7"/> > <param name="mask" value="255.255.255.0"/> > </transport> > <phy> > <param name="frequencyofinterest" value="1.755G"/> > <param name="frequency" value="1.755G"/> > </phy> > </nem> > > <nem id="8" definition="srw.xml" transport="external"> > <param name="platformendpoint" value="10.99.0.100:8208"/> > <param name="transportendpoint" value="10.99.0.8:8308"/> > <transport definition="transvirtual.xml"> > <param name="address" value="10.100.0.8"/> > <param name="mask" value="255.255.255.0"/> > </transport> > <phy> > <param name="frequencyofinterest" value="1.755G"/> > <param name="frequency" value="1.755G"/> > </phy> > </nem> > > <nem id="9" definition="srw.xml" transport="external"> > <param name="platformendpoint" value="10.99.0.100:8209"/> > <param name="transportendpoint" value="10.99.0.9:8309"/> > <transport definition="transvirtual.xml"> > <param name="address" value="10.100.0.9"/> > <param name="mask" value="255.255.255.0"/> > </transport> > <phy> > <param name="frequencyofinterest" value="1.755G"/> > <param name="frequency" value="1.755G"/> > </phy> > </nem> > > <nem id="10" definition="srw.xml" transport="external"> > <param name="platformendpoint" value="10.99.0.100:8210"/> > <param name="transportendpoint" value="10.99.0.10:8310"/> > <transport definition="transvirtual.xml"> > <param name="address" value="10.100.0.10"/> > <param name="mask" value="255.255.255.0"/> > </transport> > <phy> > <param name="frequencyofinterest" value="1.755G"/> > <param name="frequency" value="1.755G"/> > </phy> > </nem> > > <nem id="11" definition="srw.xml" transport="external"> > <param name="platformendpoint" value="10.99.0.100:8211"/> > <param name="transportendpoint" value="10.99.0.11:8311"/> > <transport definition="transvirtual.xml"> > <param name="address" value="10.100.0.11"/> > <param name="mask" value="255.255.255.0"/> > </transport> > <phy> > <param name="frequencyofinterest" value="1.755G"/> > <param name="frequency" value="1.755G"/> > </phy> > </nem> > > </platform> > > On Fri, Dec 11, 2015 at 2:42 PM, Kaushik B. Patel <[email protected] > > wrote: > >> Not sure what you are trying to do. If all you want to do is see 50% >> packet loss, use a higher data rate (i.e 11Mbps). If you have to use >> 1Mbps, replace the 1Mbps PCR curve with positive SINR values. >> >> kb >> >> Kaushik B. Patel >> Adjacent Link LLC >> >> >> On 12/11/2015 04:59 PM, [REDACTED] wrote: >> > Thanks for your respond. >> > I thought by default EMANE consider some level of noise . >> > is there any way to consider noise while only one communication between >> two >> > nodes is going on and there isnt any interference (considering some >> level >> > of noise) ? >> > I want to see for instance 50% drop packet while ping from node-a to >> node-b >> > without any other ongoing communication that cause interference. >> > >> > >> > Thanks >> > >> > On Fri, Dec 11, 2015 at 1:42 PM, Kaushik B. Patel < >> [email protected]> >> > wrote: >> > >> >> Soroush, your RxPower (-103) is below RxSensitivity (-97) so the >> packets >> >> are getting dropped within the PHY and not making it up to the 80211abg >> >> radio model. The negative SINR comes into play within the radio model >> >> when there is noise and/or interference on the channel. The receive >> >> power must always be higher than the receiver sensitivity to make it >> >> past the PHY. >> >> >> >> kb >> >> >> >> Kaushik B. Patel >> >> Adjacent Link LLC >> >> >> >> >> >> On 12/11/2015 03:57 PM, [REDACTED] wrote: >> >>> ok tnx. but why I'm not seeing any drop while configuring EMANE for >> >>> different pathloss . >> >>> for instance this is my ieee802.11.xml and ieee802.11 NEM files which >> >> I've >> >>> configure . here index data rate is one and I suppose to drop %50 of >> >> packet >> >>> roughly base on the PCR curve when assign pathloss of 103 . >> >>> based on my calculation : >> >>> >> >>> -97 = -174 + 4dB + 10log(20M) >> >>> SINR = -103-(-97) >> >>> SINR=-6 >> >>> but when I ping from node A to node B , I'm losing connection between >> >>> node-a radio and node-b radio , I mean they're not reachable. >> >>> actually, I'm losing connection between nodes emane0 interface if I >> set >> >>> pathloss greater than 96 . >> >>> Am I doing anything wrong ? >> >>> >> >>> Thanks >> >>> >> >>> <?xml version="1.0" encoding="UTF-8"?> >> >>> <!DOCTYPE mac SYSTEM "file:///usr/share/emane/dtd/mac.dtd"> >> >>> <mac library="ieee80211abgmaclayer"> >> >>> <param name="mode" value="2"/> >> >>> <param name="enablepromiscuousmode" value="off"/> >> >>> <param name="distance" value="1000"/> >> >>> <param name="unicastrate" value="1"/> >> >>> <param name="multicastrate" value="1"/> >> >>> <param name="pcrcurveuri" >> >>> >> >>> >> >> >> value="file:///usr/share/emane/xml/models/mac/ieee80211abg/ieee80211pcr.xml"/> >> >>> <param name="flowcontrolenable" value="off"/> >> >>> <param name="flowcontroltokens" value="10"/> >> >>> <param name="radiometricenable" value="off"/> >> >>> <param name="retrylimit0" value="4"/> >> >>> <param name="retrylimit1" value="4"/> >> >>> <param name="retrylimit2" value="4"/> >> >>> <param name="retrylimit3" value="4"/> >> >>> </mac> >> >>> >> >>> >> >>> <?xml version="1.0" encoding="UTF-8"?> >> >>> <!DOCTYPE nem SYSTEM "file:///usr/share/emane/dtd/nem.dtd"> >> >>> <nem name="IEEE 802.11 NEM"> >> >>> <transport definition="transvirtual.xml"/> >> >>> <mac definition="ieee80211abgmac.xml"/> >> >>> <phy> >> >>> <param name="fixedantennagain" value="0.0"/> >> >>> <param name="fixedantennagainenable" value="on"/> >> >>> <param name="bandwidth" value="20M"/> >> >>> <param name="noisemode" value="outofband"/> >> >>> <param name="propagationmodel" value="precomputed"/> >> >>> <param name="systemnoisefigure" value="4.0"/> >> >>> <param name="txpower" value="0.0"/> >> >>> <param name="subid" value="1"/> >> >>> </phy> >> >>> </nem> >> >>> >> >>> >> >>> <!-- 1Mpbs --> >> >>> <datarate index="1"> >> >>> <row sinr="-9.0" por="0.0"/> >> >>> <row sinr="-8.0" por="1.4"/> >> >>> <row sinr="-7.0" por="21.0"/> >> >>> <row sinr="-6.0" por="63.5"/> >> >>> <row sinr="-5.0" por="90.7"/> >> >>> <row sinr="-4.0" por="98.6"/> >> >>> <row sinr="-3.0" por="99.9"/> >> >>> <row sinr="-2.0" por="100.0"/> >> >>> </datarate> >> >>> >> >>> >> >>> >> >>> >> >>> >> >>> >> >>> On Fri, Dec 11, 2015 at 12:33 PM, Steven Galgano < >> >> [email protected]> >> >>> wrote: >> >>> >> >>>> Soroush, >> >>>> >> >>>> Please stay on list for this thread. >> >>>> >> >>>> That issue has been resolved for two years. Unless you are using a >> >>>> version of emane prior to 0.9, you are fine. >> >>>> >> >>>> -- >> >>>> Steven Galgano >> >>>> Adjacent Link LLC >> >>>> www.adjacentlink.com >> >>>> >> >>>> >> >>>> On 12/11/2015 02:57 PM, [REDACTED] wrote: >> >>>>> Hi Steven, >> >>>>> >> >>>>> here is the link >> >>>>> >> >>>> >> >> >> https://www.mail-archive.com/[email protected]&q=subject:%22Re%5C%3A+%5C%5Bemane%5C-users%5C%5D+%5C%5Bcore%5C-users%5C%5D+which+pathloss+with+freespace+and%092ray+models%5C%3F%22&o=newest&f=1 >> >>>>> >> >>>>> Thanks in advance for your respond . >> >>>>> >> >>>>> >> >>>>> >> >>>>> On Fri, Dec 11, 2015 at 11:46 AM, Steven Galgano >> >>>>> <[email protected] <mailto:[email protected]>> >> wrote: >> >>>>> >> >>>>> Soroush, >> >>>>> >> >>>>> To what issue are you referring? >> >>>>> >> >>>>> -- >> >>>>> Steven Galgano >> >>>>> Adjacent Link LLC >> >>>>> www.adjacentlink.com <http://www.adjacentlink.com> >> >>>>> >> >>>>> >> >>>>> On 12/11/2015 02:36 PM, [REDACTED] wrote: >> >>>>> > Hello, >> >>>>> > >> >>>>> > I wonder , where may I get patch that resolve issue related to >> >>>>> pathloss >> >>>>> > for ieee80211pcr? >> >>>>> > >> >>>>> > >> >>>>> > Thanks, >> >>>>> > Soroush >> >>>>> > >> >>>>> > >> >>>>> > _______________________________________________ >> >>>>> > emane-users mailing list >> >>>>> > [email protected] >> >>>>> <mailto:[email protected]> >> >>>>> > http://pf.itd.nrl.navy.mil/mailman/listinfo/emane-users >> >>>>> > >> >>>>> >> >>>>> >> >>>> >> >>> >> >>> >> >>> >> >>> _______________________________________________ >> >>> emane-users mailing list >> >>> [email protected] >> >>> http://pf.itd.nrl.navy.mil/mailman/listinfo/emane-users >> >>> >> >> >> > >> > > > _______________________________________________ > emane-users mailing list > [email protected] > http://pf.itd.nrl.navy.mil/mailman/listinfo/emane-users > >
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