HoW to improve Wifi Speed

See the tips below i found from internet.

Upgrade 802.11b devices to 802.11g

802.11b is the most common type of wireless network, but 802.11g is about five times faster. 802.11g is backward-compatible with 802.11b,

so you can still use any 802.11b equipment that you have.
If you're using 802.11b and you're unhappy with the performance, consider replacing your router and network adapters with 802.11g-compatible equipment.

If you're buying new equipment, definitely choose 802.11g.

Yeah , definitely i will check it ..G hehe like "3G"