How to install WPA2-PSK in Fedoa 13

I have Compaq nc6400 laptop which have built-in wireless card.
(Intel Corporation PRO/Wireless 3945ABG)(iwl3945)

1. service NetworkManager restart





OR

1. edit wpa_supplicant config file
=> /etc/wpa_supplicant/wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
ap_scan=1

network={
        ssid="my_network"
        proto=RSN
        key_mgmt=WPA-PSK
        pairwise=CCMP TKIP
        group=CCMP TKIP
        psk="secret_password"
}

2. create "/bin/wireless"

#!/bin/sh

rmmod iwl3945
modprobe iwl3945
sleep 3
ifconfig wlan0 0.0.0.0
wpa_supplicant -d -c/etc/wpa_supplicant/wpa_supplicant.conf -iwlan0 -Dwext

3. sudo wireless
4. sudo ifup wlan0

Reference:
http://hostap.epitest.fi/wpa_supplicant/
http://www.thinkwiki.org/wiki/Wpa_supplicant
http://fedoraproject.org/wiki/NetworkManager_in_Fedora_13
http://ftp.gnome.org/pub/GNOME/sources/NetworkManager/0.8/