Stories by Joanie Wexler

  • New risks in 802.11n

    Along with the potential performance and coverage benefits of 802.11n come a few new security risks, says industry security guru Joshua Wright. Wright presented a Webinar last week that outlined several new vulnerabilities that high-speed 802.11n networks introduce.

  • How 802.11n backward compatibility works

    It has been widely reported that 802.11n, the wireless LAN IEEE draft standard that uses multiple input/multiple output technology to boost Wi-Fi speeds to over 100Mbps, is "backward compatible" with today's 802.11a, 11b, and 11g networks. This can seem confusing, given that 802.11a, which runs in the 5-GHz frequency band, is not compatible with 802.11g and 11b, which operate in the 2.4-GHz band.

  • Has WiMAX turned a corner?

    Now that the broadband wireless industry can boast some bona fide WiMAX Forum-certified products - with several more on deck for certification testing - will WiMAX services suddenly proliferate as an enterprise-class, last-mile access alternative?

  • Proxim launches products amid acquisition

    Despite the recently announced US$21 million sale of its assets to Moseley Associates, Proxim intends to introduce an appliance this week that brings its product line in sync with centralized wireless LAN management architectures.

  • What to expect from the Cisco-Airespace union

    Cisco's intent to acquire wireless LAN switch start-up Airespace for $US450 million in stock, announced last week, reminds me that the IT and networking businesses more closely resemble the political arena every day.

  • E-911 over WLANs: Should you care?

    Most of the enterprise-class wireless LAN access point makers say they can triangulate the location of a wireless VoIP call to within a few meters of an AP. This bodes well for E-911 over WLANs.

  • 802.11n to bring high speeds, power management to Wi-Fi

    A year ago, 802.11n, the next generation of Wi-Fi that will bring higher speeds and other advantages to the wireless LAN table, was a gleam in the industry's eye. Today, 60-odd partial or complete proposals for how to achieve above-100Mbps WLAN speeds have been submitted to the IEEE 802.11 Working Group, which will review them in mid-September.