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There are 43 articles & tutorials regarding "802.11".
- 25.) Wireless LAN Tools: Monitoring and Reporting (Part 4)
- By Lisa Phifer This article is the fourth in a series that explores the purpose and use of 802.11 Wireless LAN Analyzers. Prior installments provided a resource list of open source and commercial WLAN analyzers ( Part 1 ), explained how to combine software with hardware to create a WLAN analysis toolkit ( Part 2 ), and used several different tools to illustrate wireless node discovery, rogue detection, site surveys, and basic troubleshooting ( Part 3 ). Here in Part 4, we show how to...
Found at Wi-Fi Planet
- 26.) Wireless LAN Tools: Discovery and Planning (Part 3)
- By Lisa Phifer WLAN Analyzers are essential tools for anyone who administers a network with 802.11 Wi-Fi devices, authorized or otherwise. Part 1 of this series identified several open source and commercial tools. Part 2 explained how to combine those tools with PDAs, laptops, desktops, adapters, antennas, and GPS receivers to create an analysis toolkit. Here in Part 3, we show how to use WLAN analyzers to carry out several common tasks: wireless node discovery, rogue detection, site...
Found at Wi-Fi Planet
- 27.) Are Site Surveys Unnecessary?
- By Steven J. Vaughan-Nichols It used to be Gospel truth that if you wanted to deploy a serious 802.11-based network you had to do a site survey . Now, as the street price for low-end access points drops below $100, some would-be network administrators are contemplating forgetting about time-consuming and expensive site surveys in favor of simply throwing more access points at any coverage problems. It sounds good doesn't it? Can't get a reliable connection in the corner office? No...
Found at Wi-Fi Planet
- 28.) Improving WLAN Performance with Fragmentation
- By Jim Geier In order to make the best use of wireless LAN bandwidth, you need to be aware of various 802.11 configuration parameters. As an optional user feature, the 802.11 standard includes the ability for radio-based network interface cards (NICs) and access points to fragment packets for improving performance in the presence of RF interference and marginal coverage areas. Let's take a closer look at how fragmentation works and cover some implementation tips. Fragmentation in Action...
Found at 802.11 PLANET
- 29.) Be Wary Of Potential FHSS Interference
- By Jim Geier In the old days, frequency hopping spread spectrum (FHSS) and direct sequence spread spectrum (DSSS) were the only two radio-based 802.11 wireless LANs available. At one point, I remember FHSS being among the top choices when deploying a wireless LAN because FHSS access points were less expensive and more available than DSSS access points. Then, the high rate version of DSSS (802.11b) and orthogonal frequency division multiplexing (OFDM) in 5GHz band (802.11a) came along....
Found at Wi-Fi Planet
- 30.) Assess Requirements Before Designing WLAN
- By Jim Geier When deploying wireless LANs, most people begin the project by jumping into technical matters, such as deciding upon which version of 802.11 to use, which vendor to select, and how to overcome the limitations of 802.11 security. These are important elements of implementing a wireless LAN; however prior to getting too far with the project, you must give careful attention to requirements analysis and design in order to end up with an effective solution. Think about...
Found at 802.11 PLANET
More articles & tutorials (Index of all articles & tutorials)
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