Wireless 802.11b and 802.11g WAPs (wireless access points) support a
range of up to 150 feet indoors and 300 feet outdoors.The 802.11a protocol is one third of 802.11b/g.Signal interfeirence from microwaves or cordless phones can also affect the range.
The newer 802.11N gives you 14x the speed of 802.11G & 6X the range.

Bluetoothi has become verry popular wireless technology and is ussually associated with cell phones.

I will explain how you can use a program to get on a wireless network with WEP and WPA encryptioni.The program is called Aircrack.We do not intend on you using this on connections without permission.

Requirements

• Cat5 cable
• RJ-45 plugs (can be purchased in packs of 50 for less than $10)
• Crimper/cutter tool

Steps

• Strip the outer covering of the Ethernet cable so you can see 8 colored wires.Do not damage the colored wires.You want to strip it about an inch
• The colored wires need to be ordered properly

Straight through

T-568A Straight through (not commonly used)

Now your standard router get the job done.However you are missing out on a lot of extra features that come with commercial routers.I am talking about features like (QoS) management, adjustable transmission power, and support for IPv6.If you need these features you can save up and buy a high quality router.OR you can install a firmware to get them free on your home router.DD-WRT is a open source project based on Linux Kernel.

Requirements

A compatible router(has to have its firmware)

Ethernet Cable