Calculate Packet Loss Bit Error Rate
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how do i transfrom "Bit Error Rate" to "frame Error Rate"? Messages sorted by: [ date ] [ thread ] [ subject ] bit error rate calculation [ author ] If you plug the values in the formula PER=1-(1-0.001)^8000 = bit error rate test 0.9996658 The above result implies that 99.96% of you packets will have errors and if there are no additional bit error rate example error correction mechanisms, they will be dropped/lost. A BER of 10^-3 is too high and is not practical. For example, in most wireless scenarios, the BER is assumed to be 10^-6. By bit error rate vs snr the way, why are you posting this in ns-users list? Abdul. ªL®õ¨¶ wrote: > for example : > when I give ber=10^-3, packet size=1000bytes, what is PER? > > -----Original Message----- > From: Abdul Jabbar [mailto:jabbar at gmail.com] > Sent: Monday, October 02, 2006 6:24 PM > To: ªL®õ¨¶ > Cc: ns-users at isi.edu > Subject: Re: [ns] how do i transfrom "Bit Error Rate"
Bit Error Rate Pdf
to "Packet Error > Rate"? > > As far as I know, the relationship between BER and PER , assuming that > bit errors are independent and uniformly distributed is, > > PER=1-(1-BER)^N where N is the number of bits. > > However, the above formula is only approximate because in real life > scenarios, the bit errors are not completely independent but may occur > in bursts. Further, the error distribution is also not exactly uniform. > > Hope it helps.... > > Cheers, > Abdul. > > ªL®õ¨¶ wrote: > >> ------------------------------------------------------------------------ >> >> Hi all, how can I transform ¡§Bit error Rate¡¨ to ¡§packet error rate¡¨? >> >> >> >> Is there any formulas for this ? >> >> >> >> Can any body help me? >> >> >> >> >> > > > > > Previous message: [ns] FW: how do i transfrom "Bit Error Rate" to "Packet Error Rate"? Next message: [ns] FW: how do i transfrom "Bit Error Rate" to "frame Error Rate"? Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] More information about the Ns-users mailing list
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Ber Repair
developers or posting ads with us Super User Questions Tags Users Badges Unanswered Ask Question _ bit error rate matlab Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute: Sign up Here's packet error rate how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top How to test Bit Error Rates on Ethernet Networks? up vote 6 down vote favorite 1 I need http://mailman.isi.edu/pipermail/ns-users/2006-October/057413.html a tool software or otherwise (preferably software) that will allow me to test Bit Error Rates on an Ethernet Network. I am using a software tool that I did not write and do not have access to the source of to introduce Bit Errors into an Ethernet Network. I am currently trying to test to see whether this software does what it actually is supposed to do, so that it can be used in some network simulations. I know there http://superuser.com/questions/325328/how-to-test-bit-error-rates-on-ethernet-networks are hardware testers like the FireBERD but it would be great if someone had some software that could do it. Although based on what I'm reading here http://www.wireshark.org/faq.html#q7.9 I don't have much hope. networking wireshark packet-loss share|improve this question edited Aug 19 '11 at 17:38 Diogo 19.8k47117193 asked Aug 19 '11 at 17:22 rhololkeolke 243312 If you have a Mac handy, it might be worth trying Wireshark on that. I've never seen Wireshark capture CRC data on any Windows machines. –sblair Aug 19 '11 at 18:21 add a comment| 5 Answers 5 active oldest votes up vote 2 down vote If you're running *NIX you can check /proc/net/dev to see stats about errors. It's vague about what errors, but according to this post on Stackoverflow it does record CRC errors. share|improve this answer answered Aug 19 '11 at 18:49 charlesbridge 936611 This is interesting and potentially useful, however, the errors are at a packet level and I need something that will give me errors on the bit level. In our initial testing we were using Wireshark and looking at packets that we knew were incorrect and trying to count bits. Obviously this is not going to work for a lot of packets so we need software that can detect errors on the bit level and give us statistics based on them. –rhololkeolke Aug 22 '11 at 16:32 add a comment| up vote 2 down
tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss http://electronics.stackexchange.com/questions/31873/is-there-a-formula-describing-the-relationship-between-bit-error-rate-frame-siz the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Electrical Engineering Questions Tags Users Badges Unanswered Ask Question _ Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. Join them; it error rate only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Is there a formula describing the relationship between bit error rate, frame size, and normalised effective throughput? up vote 0 down vote favorite Is there a formula describing the bit error rate relationship between bit error rate, frame size, and normalised effective throughput? to clarify, normalised effective throughput is the same as channel utilisation. so far I have "throughput = 1/(1+2a)" where "a = tprop*R/L" (tprop=propagation time or delay,R = bit rate), however I am unsure how bit error rate fits into this - does bit error rate have much to do with bit rate. Any help/pointers/where to get help would be appreciated. are there any other forums that I should post this on? EDIT: Just to give some more background info: basically this is for a project(topic: analysis of optimal frame size and bit error rate relationship on lossy links), where we have to write a MATLAB GUI (graphical user interface) and the inputs are bit error range (ie max and min bit error rates) and frame size range (max and min frame/packet sizes). We have to calculate the normalised effective throughput of the link from those inputs, and make a 3d graph.(x:BER, y:FSR, Z:throughput) @clabacchio i was talking about general parameters - L s
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