There is a problem exiting that the Fedora 15 Broadcom 4313 wireless is not working when getting to network manager and selecting the wireless.
Below r the steps given for solving the problem...
1.>>>>>>>>>>>>Yum install kernel-devel
Remove any broadcom/wlan drivers in use
2.>>>>>>>>>>>>rmmod b43/ssb/wl
Blacklist the following drivers
3.>>>>>>>>>>>>echo "blacklist ssb" >> /etc/modprobe.d/blacklist.conf
4.>>>>>>>>>>>>echo "blacklist ssb" >> /etc/modprobe.d/blacklist.conf
Download the Broadcom Drivers from here
http://dl.dropbox.com/u/30579529/Fedora%2015%20bcm4313/hybrid-portsrc_x86_64-v5_100_82_38.tar.gz
If your kernel version is > 2.6.37, you should download the following patch for compilation problem
http://dl.dropbox.com/u/30579529/Fedora%2015%20bcm4313/5_100_82_38.patch
If ur Kernel version is> 2.6.37 .Extract the Driver into a folder along with the patch and follow the steps from 5 below .else just make the driver and install the driver .follow the steps from no 6
5.>>>>>>>>>>>>>patch -p0 < 5_100_82_38.patch
6.>>>>>>>>>>>>>make
Load the driver with the followings
7.>>>>>>>>>>>>>modprobe lib80211 or ieee80211_crypt_tkip
8.>>>>>>>>>>>>>insmod wl_ko
Run the driver after boot process:load the driver
9.>>>>>>>>>>>>>cp wl.ko /lib/modules/'uname -r'/kernel/drivers/net/wireless
10.>>>>>>>>>>>>depmod -a
Reboot and enjoy wifi........