Hi again,

I just noticed that you're interested in highway (and not urban) scenarios. 
Then, forget reference [1] and focus on [3] and [2].

Best,
--
Francisco J. Ros, PhD
Dept. of Information and Communications Engineering
University of Murcia, Murcia (Spain)
http://masimum.inf.um.es/fjrm/

El 28/07/2014, a las 17:35, Francisco Javier Ros Muñoz escribió:

> 
> Hi Osama,
> 
> If you're interested in modeling the 5.9 GHz DSRC band, the most 
> comprehensive characterization I'm aware of can be found in [1]. The software 
> in [2] is a patch for ns-2.35 that implements the model in [1]. For more 
> background and a deeper study on VANET simulation, please refer to [3].
> 
> [1] L. Cheng, B. E. Henty, D. D. Stancil, F. Bai, and P. Mudalige, “Mobile 
> Vehicle-to-Vehicle Narrow-Band Channel Measurement and Characterization of 
> the 5.9 GHz Dedicated Short Range Communication (DSRC) Frequency Band”, IEEE 
> Journal on Selected Areas in Communications, Vol. 25, No. 8, October 2007.
> 
> [2] http://masimum.inf.um.es/fjrm/development/lognormalnakagami6/
> 
> [3] Francisco J. Ros, Juan A. Martinez and Pedro M. Ruiz, “A Survey on 
> Modeling and Simulation of Vehicular Networks: Communications, Mobility, and 
> Tools”, Computer Communications, Vol. 43, pp. 1-15, May 2014. 
> http://masimum.inf.um.es/fjrm/wp-uploads/Ros-COMCOM14.pdf
> 
> Best,
> --
> Francisco J. Ros, PhD
> Dept. of Information and Communications Engineering
> University of Murcia, Murcia (Spain)
> http://masimum.inf.um.es/fjrm/
> 
> El 26/07/2014, a las 15:00, Osama Rehman escribió:
> 
>> 
>> Hello,
>> 
>> I am trying to evaluate the performance of a vehicular ad hoc network
>> (VANET) based protocol over Nakagami-m fading channel using ns-2 simulator.
>> I came across various recommended parameters, specially when it comes to
>> setting the "m" value for defining fading severity. Following are my
>> resources:
>> 
>> *1) "An empirical model for probability of packet reception in vehicular ad
>> hoc networks", 2009, recommends a Nakagami-m = 3.*
>> 
>> *2) "Broadcast reception rates and effects of priority access in
>> 802.11-based vehicular ad-hoc networks", 2004, recommends the following:*
>> 
>> * Nakagami-m=3, if distance between vehicles are less than 50m.*
>> 
>> * Nakagami-m=1, if distance between vehicles are more than 150m.*
>> 
>> *Nakagami-m=1.5, if distance between vehicles are in between 50m & 150m.*
>> 
>> *3) "IEEE 802.11-based one-hop broadcast communications: understanding
>> transmission success and failure under different radio propagation
>> environments", 2006, recommends Nakagami-m = 1, 3 and 5, while emphasizing
>> on m = 3.*
>> 
>> *4) "A comparative analysis of DSRC and 802.11 over Vehicular Ad hoc
>> Networks", recommends two scenarios i.e. urban (m=1) and freeway (m=1.5).*
>> 
>> I would like to hear opinion of the research community on which *Nakagami-m*
>> parameter is the most suitable for evaluating VANETs protocols over *"freeway
>> (highway) scenarios"*. I am also in search for the suitable corresponding
>> Nakagami-m fading parameters while using ns-2 simulation platform.
>> 
>> Thanks,
>> Osama Rehman
> 
> 






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