While I was looking for articles around the net that explain complex terms, I found a few. Here are some -
How To Buy A Wireless Router: Decoding Wi-Fi 802.11 Networking Standards and Protocols
Wireless network buying guide - CNET reviews
Wireless Router FAQ - What is the Range of a Typical Wi-Fi LAN?
Wireless Routers - Best 802.11g Wireless Broadband Router Reviews
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