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"In 2000 the market for wireless local-area networks (WLANs) grew with the introduction of new products complying with the 802.11a and 802.11b standards. These two standards are designed to mutually coexist, allowing both wireless networks to share the same airspace in a physical location. Both types of products are in general use today. The pending ratification of a third standard, 802.11g, will combine some of the features of both its predecessors. Although all three standards are able to operate in the same physical space, certain combinations provide advantages and perform better than others, due to inevitable interference in the frequency spectrum, and the techniques designed to deal with it. At present, 802.11a/b dual band WLANs offer the best and safest implementation based on performance, network capacity, and scalability. Customers will choose standards-based, interoperable solutions that will both protect their existing investment while enabling an upgrade path to high performance WLAN connectivity." |
