Network Performance Analysis - Science topic

I need to know the appropriate tool for modeling, simulation, and analysis of wireless communication systems

I am doing a research about the use of TCP transport protocol in Wireless sensor networks, I know that there are a lot issues related to TCP in WSN. However I know that some applicatios would benefit from the use of TCP. Now, I would like to have a wide vision of which are these applications?, I mean, applicattions which have strong relliability requirements. Thanks in advance.

Hello,

In my experiment setup, I have different servers that host files with different sizes. The client downloads files continually and estimates the performance of each server by estimating the throughput. However, when I download a big file it shows higher throughput comparing small files.

My question, for a given server, how I can aggregate correctly the measured throughputs to have a single value that represents its performance.

Thank you very much for your time.

I installed leach protocol in ns2 version 2.35 :After completing all the steps, i tried to execute the leach_test, but it shows some errors in the leach.err file :

invalid command name "Resource/Energy" while executing "Resource/Energy instproc setParams {args} { $self instvar energyLevel_ alarmLevel_ set energyLevel_ [lindex $args 0] set alarmLevel_ [lind..." (file "/home/mona/ns-allinone-2.35/ns-2.35/mit/rca/resources/ns-energy-resource.tcl" line 11) invoked from within "source.orig /home/mona/ns-allinone-2.35/ns-2.35/mit/rca/resources/ns-energy-resource.tcl" ("uplevel" body line 1) invoked from within "uplevel source.orig [list $fileName]" invoked from within "if [$instance_ is_http_url $fileName] { set buffer [$instance_ read_url $fileName] uplevel eval $buffer } else { uplevel source.orig [list $fileName] ..." (procedure "source" line 8) invoked from within "source /home/mona/ns-allinone-2.35/ns-2.35/mit/rca/resources/ns-energy-resource.tcl" (file "mit/uAMPS/sims/uamps.tcl" line 18) invoked from within "source.orig mit/uAMPS/sims/uamps.tcl" ("uplevel" body line 1) invoked from within "uplevel source.orig [list $fileName]" invoked from within "if [$instance_ is_http_url $fileName] { set buffer [$instance_ read_url $fileName] uplevel eval $buffer } else { uplevel source.orig [list $fileName] ..." (procedure "source" line 8) invoked from within "source mit/uAMPS/sims/uamps.tcl" (file "/home/mona/ns-allinone-2.35/ns-2.35/tcl/mobility/leach.tcl" line 18) invoked from within "source.orig /home/mona/ns-allinone-2.35/ns-2.35/tcl/mobility/leach.tcl" ("uplevel" body line 1) invoked from within "uplevel source.orig [list $fileName]" invoked from within "if [$instance_ is_http_url $fileName] { set buffer [$instance_ read_url $fileName] uplevel eval $buffer } else { uplevel source.orig [list $fileName] ..." (procedure "source" line 8) invoked from within "source /home/mona/ns-allinone-2.35/ns-2.35/tcl/mobility/$opt(rp).tcl" (file "tcl/ex/wireless.tcl" line 187)

I have made a lot of research about the solution of the problem but i didn't find anything good.

Any help about this issue, please?

There is number of very complex and effective Mathematical modeling tools utilized to assess the Computer Networks Performance Analysis. Some are easier some more complex to use and do require proper training, mathematical and software skills.

In MATLAB GUI  Data set used for making network is divide in to  training,testing and validation set randomly.  performance, and regression  graph is  given. How can i defence a question this network is good . Which parameters should i compare to choose best network among many? How should i defense  MSE or SSE define the performance of network. To choose my best model performance what parameters should i compare?

I'm looking for actual value that represent the distance between the sensor node and gateway in the wireless body area network (WBAN). Can anyone help !

The location of the monitoring device in/on the train units to detect/monitor track faults

Hi everyone. I have just started working on Transport Layer Protocols for multi hop wireless networks. Please suggest to me if I should carry on my simulations in ns-2 or ns-3. And which is a better TCP compatible. Thank you so much.

I am new to Ns3. I am working on directional cooperative mac implementation of IEEE 802.11ad. Can any one help me on how to assign different data rates for stations depending on the distance between the station and the access point. Since current version of ns3 has been developed only till IEEE 802.11ac, help me on how to vary the data rates depending on the distance.

I want to measure Delay, Jitter and packet loss with wireshark in a UDP connection, how can I do this??

I'm testing a streaming connection with VLC and i'm sniffing in my interface and in a remote interface, but i can't measure the delay,  jitter and packetloss.

Anyone can help me??

I'm to run a simulation whereby ns3 communicates with a geo-location spectrum database and wanted to know if its possible and if any tutorials or any examples are available? I've gone through the ns3 documentation and didn't find anything on that. Please assist

BR

Mulalo

In my setup, the probability density function of the noise is not Gaussian-like and its PDF changes with the system statement.

Thus, I want to use the BER calculation by error counting instead of BER estimation. Moreover, the experimental BER level is around 10^-5. However, it seems the common method to calculate the BER is based on the PDF estimation.

How can I calculate the error by direct error counting? I set up a simple system model in the attachment.

Could anyone give me some advice?

How can I create an instance of a table at each node, and also be able to call the add and update functions when certain packets enters the node accordingly.

I have attached the code which has a new table structure and and the functions required for adding and updating entries into the table.

Hi all, do you know of any code that is accessible (can be used and modified), that implements several functions typical of a Vector Network Analyzer?

VNAs come with proprietary code embedded, that cannot be altered, improved, reused. If you have old data to process off-line, or you want to test some algorithms (e.g. calibration), it would be welcome a sort of a library.

Some tools exist like Agilent ADS, or Genesys, or sw tools of Anritsu high-end VNAs, etc. Some calibration software (such as METAS and some ANAMET tools) are available as exe files.

I'm working on this among others (using Matlab), but I don't like to reinvent the wheel! This is why I'm asking ....

Thanks, cheers

andrea

I was wondering at which layer the beacons are sent in VANET?

Usually vehicles broadcast their cooperative awareness messages aka beacons that contain current speed, location, time, heading, and so forth to the neighbor vehicles. Can these messages be implemented as application layer messages?

I need to work with the header information. More precisely I need to manipulate the header information (probably TCP or IP header) and use the offset information for my own purposes.

dear expert , I have trained my neural network and simulate the output it is completely matched with training set but not in testing data set why please any one can suggest me

Hello,

I have a shapefile of primary, secondary and tertiary roads. However the only information that is complete in the database is the road length and only a few of them have maximum velocity indication. How should I proceed if I want to get a result with the length of the route and the average time to get to point A to point B?

Best regards,

Mariana A.

NS3 NS2 Network Simulation VANET

my output is as in attach file

I am developing HMM systems that detects network anomalies, I was referring to KDD cup 99 dataset but for a particular attack, can anyone give me an example of the possible observations and the hidden states on which the observations relate to?

As I have calculated Packet Loss Ratio, now want to calculate throughput, delay and jitter in Wireless Body Area Networks (WBAN), can anyone tell me how should I proceed further? Thanks in advance

Which of those simulators is more performant and supporting mobility, energy, QoS, Faire index and more metrics?