IEEE 802.11a WLAN model

IEEE 802.11a WLAN physical layer model, with demonstration of adaptive modulation and coding.

Description

* End-to-end 802.11a physical layer  
* All mandatory and optional data rates: 6, 9, 12, 18, 24, 36, 48, and 54 Mb/s  
* BPSK, QPSK, 16-QAM, 64-QAM modulations  
* Forward error correction coding (convolutional; code rates 1/2, 2/3, 3/4)  
* OFDM transmission: 52 subcarriers, 4 pilots, 64-pt FFTs, circular prefix  
* Data interleaving  
* PLCP preamble (modeled as 2x2 long training sequences)  
* Receiver equalization  
* Viterbi decoding  
* Data rates selectable on-the-fly  
* Adaptive modulation demo over dispersive multipath fading channel  
 
Instructions:  
 
1. Unzip to a new folder.  
 
2(a). If you are running under R13 (MATLAB 6.5), change the MATLAB current directory to the subdirectory R13, then open the 'IEEE80211a_NoSF' mdl file. (If you have Stateflow, you can also run the enhanced version, IEEE80211a.mdl.)  
 
2(b). If you are running under R13SP1 (MATLAB 6.5.1), change the MATLAB current directory to the subdirectory R13SP1, then open the 'IEEE80211a' mdl file.

• Required Products: Communications Toolbox; Communications Blockset; Signal Processing Blockset; Signal Processing Toolbox; Simulink
• MATLAB release: MATLAB 6.5 (R13)

Other Files

readme.txt,
R13SP1/IEEE80211a_graphics.fig,
R13SP1/IEEE80211a_graphics.m,
R13SP1/IEEE80211a_init.mat,
R13SP1/IEEE80211a_lib.mdl,
R13SP1/IEEE80211a_open_graphics.m,
R13SP1/IEEE80211a_settings.m,
R13SP1/IEEE80211a_udg.m,
R13SP1/IEEE80211a.mdl,
R13/IEEE80211a_open_graphics.m,
R13/IEEE80211a_graphics.fig,
R13/IEEE80211a_graphics.m,
R13/IEEE80211a_init.mat,
R13/IEEE80211a_lib.mdl,
R13/IEEE80211a_NoSF.mdl,
R13/IEEE80211a.mdl,
R13/IEEE80211a_settings.m,
R13/IEEE80211a_sfun.dll,
R13/IEEE80211a_udg.m

[Konstantinos Banitsas]

it doesn't seem to run!

[Ayman Naguib]

I have all the required toolboxes (Communications,Communications Blockset,DSP Blockset,Signal Processing,Simulink) but it  
I get an error message saying invalid stateflow license and does not run

[li peng]

Unable to open model file 'dspsigops.mdl'  
help me!  
what and where is it??

[Pepe Viyuela]

I could run it. With Matlab 6.5. And it is great.

[randy kuo]

 

[beatriz romero]

i downloaded the model of 802.11a and i tried to open it (i tried to  
open ieee802.11a_noSF.mdl) in my pc and i couldn't.  
it seems to be empty but i know it isn't becase its size is aproximatly 256KB.  
i am very interestig in that model and i would like to open it.  
please i'd be very grateful if you could help me,  
thaks in advance,  

[Yongtao Wang]

IEEE802.11a_noSF.mdl worked fine. But IEEE802.11a.mdl did not work. There was an erros message "make: fopen: IEEE80211a_sfun.mku: No such file or directory". Also, seems to me there are many things hidden in the model. Can someone provide a short tutorial so that it would become more understandable?  

[Phang Kok Hong]

I am interested in observing the performance of the system.I downloaded the file,unzipped it and set the directory path the folder, but I could not open the IEEE802.11a_noSF.mdl file. I am using MATLAB 6.1. I am not sure whether is it because of the MATLAB version that I am using now?? Any help is very much appreciated. Thank you in advance.

[John Oliver]

Runs for me just fine.  
 
One question, is the convolutional encoder/decoder hidden? I dont see it anywhere.  
 

[Jessie Li]

IEEE802.11a worked fine.I have a question .The input data which send to zero pad in modulator is 4320*1,but the output of the zero pad is 960*1,that means truncation uccured and some of the input data are abandoned. Isn't right? If yes,how can it calculate the PER correctly?

[li peng]

I am interested in observing the performance of the system.I downloaded the file,unzipped it and set the directory path the folder, but I could not open the IEEE802.11a_noSF.mdl file.system says:Warning: Simulink<-->Stateflow inconsistency found, attempting repair...  
Repair completed.  
******IMPORTANT******  
Corrupted Stateflow charts are recovered and placed in a subsystem named  
###Recovered Stateflow Charts###. You can open it using  
   open_system('IEEE80211a/###Recovered Stateflow Charts###');  
Warning: Loading model 'IEEE80211a_NoSF' generated with a newer version (5.00) of Simulink.  
> In C:\MATLAB6p1\toolbox\matlab\general\private\openmdl.m at line 13  
  In C:\MATLAB6p1\toolbox\matlab\general\open.m at line 115  
  In C:\MATLAB6p1\toolbox\matlab\uitools\uiopen.m at line 137,and so on.Any help is very much appreciated. Thank you in advance.

[Tayfun Altun]

 

[Sam Panaello]

i was wondering do have anything on MIMO OFDM

[Tony Montana]

its very good keep up the good work and thanks

[Alex Buffon]

Thanks for the example but im also intrested in a MIMO Ofdm if you have anything it would be great Thanks

[jane Choong]

can this be used for matlab 6.1?  
 
can someone write down the steps on how to use/run these files/

[tomas cook]

Thanks for the example but im also intrested in a MIMO Ofdm if you have anything it would be great Thanks

[geeth sameera]

 

[Victor Boivie]

Very impressive and educational

[glacier cao]

Very impressive

[Michael Park]

Thanks  
MIMO update please  

[Franz Greco]

Very usefull and impressive, i'm gonna use it for my thesys

[amin salami]

 

[amin salami]

hello

[Peter Wong]

Very good, thanks a lot.

[nestroA Delgadho H]

Very interesting an

[Minying Sun]

thanks for the sharing

[Guozhi SONG]

really excellent job!

[Hao Tian]

very good job! Can you give me some detailed explanation? Thanks!

[moises sanchez]

Excellent Job! Congratulations ! Thank you very much for sharing. I will appreciate if you can send me a more detailed explanation for the model.

[Kevin Shih]

Excellent! Would you mind to send me the detailed explanation and the operation? Thanks a lot!!!

[Guillermo Falla]

 

[ali awad]

thanks

[ary dewi]

It is very interesting.

[srikanthan sriharan]

 

[Raul Jimenez]

It is very interesting, but i need the code files, how i can get it?

[Kelvin Chee]

Where can I get the IEEE80211a_sfun.m instead of DLL file?

[Ritz Goel]

It is really a very good project but the theorotical discription on the first page is very less.From where can I get more tutorial for this implementation and the source code?

[Luis F]

Very good project!, but it would be possible to get more information or any documentation about how was it implemented. I will appreciate if you can send me a more detailed explanation for this model. Thanks

[frank lee]

good job! very helpful to me! thank you

[ye jun]

Good project!  
But I don't know how the model of "Simulation Settings" is implemented.  
Who can explanation it to me?  
Thanks a lots.

[autt autt]

very good Project and i will find more document in your project

[Ahmad rayani]

very good work,but if someone implemnts the IEEE802.11g like this,it'll be fantastic

[Cui jian]

That's truely helpful for my learning OFDM.The Author must be a genious.

[Sasi kumar]

it was an excellent stuff

[Shruti Gorappa]

I am running Matlab 7.0 and am having trouble with the IEEE802.11a_NoSF model. The following error is thrown. I looked at the Doppler filter block and was unable to locate the parameter. Can anyone help me fix this problem?  
 
Error in 'IEEE80211a_NoSF/Multipath channel/Multipath Rayleigh Fading Channel1/Multipath Fading Channel/Fading Profile/Triggered Rayleigh Profile/Doppler Filter': Initialization commands cannot be evaluated. MATLAB error message: Invalid setting in Digital Filter block (mask) 'Doppler Filter' for parameter 'MaskEnables'.  
 
 
Thanks

[shuba vastul]

Even I am running Matlab 7.0 and am having trouble with the same IEEE802.11a_NoSF model.Can anyone help me fix this problem?  
 
Error in 'IEEE80211a_NoSF/Multipath channel/Multipath Rayleigh Fading Channel1/Multipath Fading Channel/Fading Profile/Triggered Rayleigh Profile/Doppler Filter': Initialization commands cannot be evaluated. MATLAB error message: Invalid setting in Digital Filter block (mask) 'Doppler Filter' for parameter 'MaskEnables'.  
 

[reihaneh lavafi]

Thanks for the example .im also intrested in a MIMO Ofdm if you have anything it would be great Thanks

[naga sitaram m]

i tried 4 to 5 times to down load the .zip file but always i am getting error in reading that file after downloading, it is not unzipped correctly, many times i tried to unzip but no use, can any one who have unzippable file (this IEEE802.11a.zip file) send me to this mail id. please send me the zip file.

[Ýlhan Baþtürk]

Really good ýt is a useful source for us.Thanks alot.If anybody has this kind of works please share us.

[Alfred Jiang]

I saw the following error:  
error in block doppler_filter: block initialization commands. any clue?  

[Rashmee Rajasekaran]

Really good work! Must have spent lot of time on it! Thank you!

[Nestor Bustos]

Hi. thank you for your work it's been so helpful.  
i wish to know how can i calculate the following parameters : interleaverRows, interleaverCols, interleaverElements from the Matrix interleaver and general block interleaver.  
thanks for your time.

[yang gao]

i wish to know how can i calculate the following parameters : hysteresis factor

[Gary Lee]

hi, how come my matlab pop up a window n says that im missing "commblkintrlv2" file??

[dhruvit talati]

 

[gary L]

Dear author, do youm mind sending me more documentation on this code of yours. Your codes are fantastic... thanx alot for sharing.

[haritha ballapalli]

sir i need a matlab code orelse c language code for ofdm

[sharada karmakar]

can u please send the frame format coding in matlab for 802.11

[Edouard Lhomme]

I m very interesting by this work for my master thesis i would like to know where is the power transmitted and do you take into account the distance between the receiver and transmitter ? I would like to have the power of the signal in function of the distance Best regards

[bob smith]

Will you send the 802.11a PHY matlab codes to me?

[Ahmad rayani]

dear auther,  
if u dont mind,i wish to recieve a feedback documentaions and any athor useful resources that may increase more knowldge about this article. thanks...!!

[k jiang]

this is very good!

[Simon Mpasi]

Hello Martin,  
 
this was a great undertaking. Congratulations. Unfortunately it is hard to understand the models without documentation oer matlab code. If you or anyone else have the documentation or matlab, code, I will greatly appreciate it. Great Job!!! Simon

[wang wei]

 

[John Simmons]

Great Work!

[soroush soleimani]

good

[kuldip pahwa]

model is not in working stage .

[Geetha s]

Really good work with lot of info. I would be thankful if you could tell me if this model could be extended for IEEE 802.16a. Is it possible to simulate OFDMA ?

[yahaioui nacer]

bien pour cette idée

[Linda Liu]

good

[Borche Ilioski]

 

[mak bond]

its really nice

[Martin Bertolina]

This is very good. I would like to consult you about what type of channel equalization are you using.  
 
Thanks,  
Martin

[fang chengzhi]

very good!!!!

[RANA JAVAID IQBAL]

please send me other documentation of this simulation so that i understand it well  
i m looking for reply

[Guner Celik]

Hi. the work is very successful. I need to write the mfiles of this simulation and I need to know how to find the values of: interleaverRows, interleaverCols, interleaverElements from the Matrix interleaver and general block interleaver.  
 
thanks for your time.

[shah hussain]

plz send me its documentation at [e-mail]

[Arunkumar Sundarrajan]

Better explanation would be more useful

[Arunkumaf Sundarrajan]

Could you please post the documentation also.....that will very helpful to this wonderful demo............

[Kunming Liu]

Please sent its documentation to [e-mail]

[Kunming Liu]

Please send its documentation to [e-mail],thank you very much

[Kunming Liu]

Could you please send the documentation to [e-mail],thank you very much!

[Withanage Anil Perera]

Please send the documentation on this.

[alex qwerty]

 
great!!!!!!!!!!!!!!!!!!!!  
Please send its documentation to  
[e-mail]

[Mat frost]

Please send ist documentation to  
[e-mail] thank you!

[thomas tang]

Very good!  
Please send the documentation on this to [e-mail]

[jazz mine]

Great!! plz send me the documentation to [e-mail]. Tq!

[jazz mine]

??? Input argument "ax" is undefined.  
 
Error in ==> IEEE80211a_graphics at 11  
haxes = cell2mat(struct2cell(ax))  
 
Anyone...any idea about this??help me..tq

[Jan Leduc]

Could you please send the documentation to [e-mail]

[dhruva dixit]

sir can u please send me documentation of this to have better learning.

[lameck Chindove]

Good Stuff,Sir can u please send me documentation of this to have better learning.

[Jie Xu]

very good, plz give me a copy of the document, thanks a lot

[Wiwit Chaiwimol]

I would like to ask for the document for this simulation if possible please. Thank you

[Aleksandar Misackovski]

good sumilation. if you can send me a document for this simulation it woul help me a lot thank you

[Xing Shang]

I can not run this simulation for the reason that "Failed to find library 'IEEE80211a_lib'." Can you help me?  

[prasanna venkatesan]

Its nice...Can i get the document for this simulation if possible please

[inderjeet kaur]

can i get the documentation for this t [e-mail]  
 
thnks a lot

[khan sweet]

Its very gud work and helpfull for me to learn about this stander,Please is it possible that you email me more detail explaniation of this modle and how its work..Really its very help full for my learning

[Julius Sandy]

thanks for this resume, can i get more information and documentations if possible please.

[boon hoi]

I would like to ask for the documentation for this simulation.([e-mail]) Thank you

[eastcandar afif]

Its very gud work and helpfull for me to learn about this stander,Please is it possible that you email me more detail explaniation of this modle and how its work..Really its very help full for my learning  

[xia zhou]

very good

[Gerardo Camargo]

Exellent Job!, I would like to get more information or any documentation about how was it implemented. I will appreciate if you can send me a more detailed explanation. Thanks  
 
[e-mail]

[Felipe V]

i'cant run ths program, I have a problem with a Filter....and this is: Error in 'IEEE80211a/Multipath channel/Multipath Rayleigh Fading Channel1/Multipath Fading Channel/Fading Profile/Triggered Rayleigh Profile/Doppler Filter': Initialization commands cannot be evaluated. MATLAB error message: Error using ==> get_param  
Digital Filter block (mask) does not have a parameter named 'FilterSource'....  
 
Please help me

[Keith Chetcuti]

Very good model. It is helping me alot to get a grip of the 802.11a standard. I would be very grateful if you can send me the documentation files so that I can understand your project.My objective is to change the multipath model with another model which I have already in hand.

[francisco aquino]

ok

[Bernd St]

I think it's a very good model. Unfortunately I have the same error as Felipe (posted 2008-04-30) with the Doppler-Filter. Do you have a solution for that. Anotherpleasure to you: Can you sent me the documentation too, to understand the project.  
 
thx,  
Bernd

[Felipe Vergara]

Bernd St ([e-mail])  
 
yes, did solve it, you have to slect in matlab current directory and put where are the directory of R13SP1, aftes that, open Simulink and clik in open a model, and choose the IEEE80211a.mdl, and Run.... that's all, bye.

[shahzad bhatti]

Please send me its documentation. Its a very good and detailed model.

[Ebong Udom]

I ran the model, and i have to say that it's a good.But is it possible to get the documentation for the model.I'll really appreciate it.  
 
Thanks.

[Julius Kusuma]

Very nice work, but its utility for learning is crippled by lack of any documentation whatsoever.

[Erika Salaz]

Hello, 
 
I would like to know if the module OFDM for IEEE80211a works for standar DVB-T or what is the difference?? Thanks 
 
[e-mail]

[Shahzad Bhatti]

Does anyone has its documentation ? Please share. cheers  
 
Emaail : [e-mail]

[Sandu Edward]

 

[Sandu Edward]

The model is well done. I would appreciate if you could send me some documentation.Thanks

[Pasha Fed]

I would appreciate if you could send me some documentation.Thanks

[Tranquang]

very good.please send me it documentation.thank 
mail:[e-mail]

[Pasha Fed]

Please send me it documentation. 
mail: [e-mail]

[Veronika Shivaldova]

Pleas send me documentation, i would need it very much for my diploma thesis an TU Vienna (Austria). Thank's for your help and advising!!!  
 
Email: [e-mail]

[saba shafi]

it is good but dificult to run

[hugo]

Thanks, it is very helpful. Please send me the documentation.  
Thank you for your help.  
 
[e-mail]

[Alfredo]

Hello, 
 I'm traying to change the multipath fading channel for the Hiperlan/2 channel models, but when I configurate the multipath block for that model, I don't get an appropiate BER and PER. Do you know what could be the problem? I've tried with just 6 taps instead the 18 taps defined for Hiperlan/2 channel models and changing the equalizer, but it doesn't work. Thanks in advance.