(Editor's note: This popular feature article, which was first published May 2007, is being republished in response to its great popularity and the likelihood that the 802.11n spec will be ratified in ...

Anyone developing wireless LAN (WLAN) systems knows the security problem created by the wired equivalency protocol (WEP). The bigger issue designers must wrestle with is how to solve the problems ...

The IEEE 802.11 specification (ISO/IEC 8802-11) is an international standard describing the characteristics of a wireless local area network (WLAN). The name Wi-Fi (which stands for Wireless Fidelity, ...

Wireless networks based on IEEE 802.11 have been widely adopted by home users and businesses. New applications such as video and multimedia streaming bring unique and challenging quality of service ...

In response to reader requests for a refresher in basic wireless LAN operations, I’ll finish up a discussion I began last time of 802.11 WLAN channel assignments and user access. Some of you have ...

As 802.11a products began shipping months ago, more and more companies have been taking advantage of 802.11a’s superior performance. 802.11a radios transmit at 5GHz and send data up to 54Mbps using ...

The most recent version of the IEEE’s wireless local-area network (WLAN) standard, 802.11ac, uses the 5-GHz unlicensed band and multiple-input multiple-output (MIMO) to significantly boost data speeds ...

Wireless technology has shown rapid development over the last 15 years. With that in mind we look at the progression of the 802.11 protocol from the original legacy mode, through to the current “ac” ...

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802.11 is a set of IEEE standards that control wireless networking transmission methods. They are used today in the following versions to offer wireless connectivity in different environments ...

Fig 1. Among the protocol stack layers for IEEE 802.15.4, only layers 1 and 2 belong to the standard, while the upper layers are defined by the specific protocol (e.g., ZigBee, 6LoWPAN, and ...