is it possible to simulate MAC layer of wimax in matlab?

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milosavljevic

Joined: 13 May 2007
Posts: 5

13 May 2007 20:31 mac packet in matlabcode

Hi,

I am relatively new to MATLAB and I was woundering if it is possible to simulate the MAC layer with QoS of WIMAX 802.16d or e?

Any comments on this metter will be appreciated.

Thank You!
regards!

mkhan

Joined: 18 Mar 2007
Posts: 190
Helped: 41

13 May 2007 23:54 802.16 mac layer simulation model

Hi,

I m not much familiar with WiMAX MAC layer stuff, but u can simulate any wireless systems MAC with or without QoS constraints, with MATLAB. MATLAB gives you very flexible environment to simulate your system mostly if you are working with matrices stuff.

BR,

MAK

brmadhukar

Joined: 21 Jun 2002
Posts: 844
Helped: 29

15 May 2007 4:18 matlab+ieee 802.16e mac layer

I would suggest you write m-files rather than using the simulink. They are easier to change and maintain

deolan

Joined: 08 Jul 2002
Posts: 82
Helped: 5

15 May 2007 13:03 mac layer source code

For full simulation of MAC level, i think, it should be better to write a simulation program on C or C++, because there are a lot of structures, like a QoS parameters, Service Flows parameters, MAC management packet's data etc. As for me, it's too difficult to implement pointers, structures and arrays of structures in Matlab.

By the way, if you only need to simulate scheduling algorithms, you could use Matlab.

For my opinion, the better type of scheduling for UGS and rtPS traffic is EDF algorithm, and for nrtPS and BE traffic - WFQ algorithm.

milosavljevic

Joined: 13 May 2007
Posts: 5

15 May 2007 23:44 simulink mac layer

Thank you all for the reply. It gave me the directions.

Ragards!

milosavljevic

Joined: 13 May 2007
Posts: 5

16 May 2007 10:18 design wimax by matlab

Hi,

Thanx again on the replay. I would like to discuss something as well with you if you dont mind.

I am supposed to design the model for WiMAX 802.16d for physical and possible MAC layer using MATLAB. I had a look on differnt materials on MathsWork website.
I was woundering whether MATLAB or Simulink is better in simulating the physical layer? I personaly think that MATLAB m-file offers higher flexibility compared to Simulink in physical layer design.

Any comments on this metter will be appreciated.

Thank you
Regards

deolan

Joined: 08 Jul 2002
Posts: 82
Helped: 5

22 May 2007 8:41 smartbits mac layer

For PHY simulation, it is better to use both Matlab and Simulink, because Matlab will help you with randomizer and interleaver (you sould write some m scripts) and you can use Simulink with RS and CC blocks (but i didn't use Simulink).

cachep

Joined: 01 Jun 2006
Posts: 75
Helped: 4

25 May 2007 6:10 code matlab of mac layer

Who could tell me detail about scheduling services that WiMax defines?
I know that there are 5 scheduling services : UGS. rtPS, nrtPS, BE and ErtPS (Extended real-time polling service. But it is really difficult for me.

m_ratheesh_k

Joined: 13 Nov 2006
Posts: 74
Location: Trichy

26 May 2007 10:10 matlab code simulating wimax

Hi,
Smart bits, Vector signal Analyzer for MAC analysis, & Layer 1 are the softwares used

regards,
MRK

cachep

Joined: 01 Jun 2006
Posts: 75
Helped: 4

01 Jun 2007 4:49 mac layer simulation matlab

[quote="deolan
For my opinion, the better type of scheduling for UGS and rtPS traffic is EDF algorithm, and for nrtPS and BE traffic - WFQ algorithm.[/quote]

Could you tell me about EDF and WFQ algorithm, plz?

deolan

Joined: 08 Jul 2002
Posts: 82
Helped: 5

04 Jun 2007 8:16 mac layer in simulink

For more detailed descriptions of EDF and WFQ algorithms you should read the following book - "Scheduling in Real-Time Systems" by Francis Cottet, Joelle Delacroix, Claude Kaiser, Zoubir Mammeri.

One useful practical exapmle of using WFQ algorithm is described in a book named "Inside Cisco IOS", but, unfortunately, i can't remember the name of author.

Basically, EDF algorithm is based on timing properties of connection, so we should use this type of algorithm for scheduling connections with real-time data.

When the timing properties aren't so important, but we need to schedule several connections with diffrent amounts of data, we use the WFQ algorithm, because it gives the queue's grants, which depending of data size in queue.

rmreddy

Joined: 20 Feb 2007
Posts: 73
Helped: 1

25 Jul 2007 6:42 wimax mac layer testing type

no ways man...
no ay u can implement wimax MAC on matlab ...
there are too many functional modules, sub-modules, modular functions, supporting functions too much of memory constraints, handling pointers, structures, enumerators are difficult in MATLAB ...

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rag_perfect

Joined: 01 Sep 2005
Posts: 150
Helped: 7
Location: India

26 Jul 2007 6:18 mac layer of wimax

u can do that one in matlab...

shameem

Joined: 27 Oct 2005
Posts: 139
Helped: 2

30 Jul 2007 16:30 wimax mac matlab simulation

Hi,
If anybody have matlab simulation code of Physical layer of wimax, please uoload it.

Any help will be highly appreciated !!

Thanks

danielr

Joined: 03 Apr 2006
Posts: 13
Location: Argentina

11 Feb 2009 1:50 matlab code wimax physical layer

You can found a Matlab simulator in the Mathworks site.
I will attach the code.

WiMAX 802.16e PHY and MAC (beta)
by Muhammad Nadeem Khan

11 Aug 2008 (Updated 12 Aug 2008)

WiMAX Physical and MAC Layer

Description Matlab source code for the test vectors and Simulink model for physical layer with MAC Layer addition to the previous model. This model is based on Physical Layer Specification of IEEE 802.16e and ETSI HiperMAN. Run Data.m to copy data to workspace and then run the WiMAX_Test_4.mdl model.

Acknowledgements The author wishes to acknowledge the following in the creation of this submission:
WiMAX 802.16e Physical Layer

Required Products Communications Toolbox
Simulink

MATLAB release MATLAB 7.4 (R2007a)
Zip File Content
Other Files Data.m,
WiMAX_Test_4.mdl,
WiMAX_Test_4.PNG

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