Questions about the Nakagami Loss Model

[Sean Hayes]

Just a few questions on the Nakagami loss Model, even answering one would be helpful.

1. What does the m parameter signify exactly? Setting it to 1 equals a Rayleigh distribution. Does setting it to 0 mean a Rician distribution or something close to it?
2. The model in NS-3 has three such m values (m0,m1,m2)  which represent distances, what is there relation to the above m parameter? Would I have to set all of them to 1 to get a Rayleigh distribution?

[Konstantinos]

Hi,

1) The model is explained in detail here http://www.sciencedirect.com/science/article/pii/B9780080093062500054

In principle it gives the probability density function as such:

in which  is the fading depth parameter and  the average received power.

http://www.nsnam.org/doxygen/classns3_1_1_nakagami_propagation_loss_model.html

This page here explains the differences of Rician and Nakagami and which value "m" can be used to approximate Rician 

http://www.wirelesscommunication.nl/reference/chaptr03/ricenaka/ricenaka.htm

2) This "m" variable has different value for different distances between two nodes. These values are represented by the different m0, m1, m2.

[Sean Hayes]

So basically m0, m1 and m2 is the fade depth for its respective range?

The default values for m's are 1.5 for less than 80m and 0.75 for between that and 200m and higher than 200m. Are these values in decibels?

I see your equation:

but how exactly do I implement this in the ns-3 nakagami model?

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