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How to use Nakagami radio propogation model in 802.11p using NS2 ?

Description

More realistic wireless communication channel with fading can be configured using the Nakagami RF model. It is mostly used in VANET signal propagation model.

Sample Code

TCL part :

===============================================
# Define options
===============================================

set val(chan) Channel/WirelessChannel ;# channel type
set val(prop) Propagation/Nakagami ;# radio-propagation model
set val(netif) Phy/WirelessPhyExt ;# network interface type
set val(mac) Mac/802_11Ext ;# MAC type
set val(ifq) Queue/DropTail/PriQueue ;# interface queue type
set val(ll) LL ;# link layer type
set val(ant) Antenna/OmniAntenna ;# antenna model
set val(ifqlen) 50 ;# max packet in ifq
set val(nn) 72 ;# number of mobilenodes
set val(rp) GPSR ;# routing protocol
set opt(x) 800 ;# x coordinate of topology
set opt(y) 750 ;# y coordinate of topology
set stopTime 35.00

================================================
# Main Program
================================================
#vehicles configuration

# 802.11p default parameters
$val(netif) set CSThresh_ 3.9810717055349694e-13 ;# -94 dBm wireless interface sensitivity
$val(netif) set Pt_ 0.0005 ;#equals 20dBm when considering antenna gains of 1.0
$val(netif) set freq_ 5.9e+9
$val(netif) set noise_floor_ 1.26e-13 ;# -99 dBm for 10MHz bandwidth
$val(netif) set L_ 1.0 ;# default radio circuit gain/loss
$val(netif) set PowerMonitorThresh_ 3.981071705534985e-18 ;# -174 dBm power monitor sensitivity (=level of gaussian noise)
$val(netif) set HeaderDuration_ 0.000040 ;# 40 us
$val(netif) set BasicModulationScheme_ 0
$val(netif) set PreambleCaptureSwitch_ 1
$val(netif) set DataCaptureSwitch_ 1
$val(netif) set SINR_PreambleCapture_ 3.1623; ;# 5 dB
$val(netif) set SINR_DataCapture_ 10.0; ;# 10 dB
$val(netif) set trace_dist_ 1e6 ;# PHY trace until distance of 1 Mio. km ("infinity")
$val(netif) set PHY_DBG_ 0

$val(mac) set CWMin_ 15
$val(mac) set CWMax_ 1023
$val(mac) set SlotTime_ 0.000013
$val(mac) set SIFS_ 0.000032
$val(mac) set ShortRetryLimit_ 7
$val(mac) set LongRetryLimit_ 4
$val(mac) set HeaderDuration_ 0.000040
$val(mac) set SymbolDuration_ 0.000008
$val(mac) set BasicModulationScheme_ 0
$val(mac) set use_802_11a_flag_ true
$val(mac) set RTSThreshold_ 2346
$val(mac) set MAC_DBG 0

Propagation/Nakagami set gamma0_ 1.9
Propagation/Nakagami set gamma1_ 3.8
Propagation/Nakagami set gamma2_ 3.8

Propagation/Nakagami set d0_gamma_ 200
Propagation/Nakagami set d1_gamma_ 500

Propagation/Nakagami set use_nakagami_dist_ false

Propagation/Nakagami set m0_ 1.5
Propagation/Nakagami set m1_ 0.75
Propagation/Nakagami set m2_ 0.75

Propagation/Nakagami set d0_m_ 80
Propagation/Nakagami set d1_m_ 200