How to setup wireless internet

I think it is time to setup my wireless internet, I have a lenovo T510 and my network card is the Intel Centrino Advanced-N 6200. This is what I have tried so far...

Code:

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ip addr
1.lo: <Loopback,UP,LOWER_UP> ,tu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
2.eth0 <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
    link/ether f0:de:f1:06:75:f8 brd ff:ff:ff:ff:ff:ff
3.wlan0 <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
    link/ether 00:27:10:24:f9:ac brd ff:ff:ff:ff:ff:ff

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I tried a few other things but I don't think their usefulness is irrelevant. How can I get my wireless card working?

I don't do any wireless so can't help with it much but we have other Arch users here that run wireless setups. However, the Arch wiki has a nice in depth HowTo for setting up wireless internet:

https://wiki.archlinux.org/index.php/Wireless

I'd recommend starting there, then posting back if you should get stuck.