The enterprise, SOHOs, and homes are demanding mobility and portability with high-bandwidth data, voice, and video access. This has led to the introduction of wireless LAN technologies, which attempt to provide exactly that. In the 2.4 GHz frequency band, IEEE 802.11b is “the” wireless LAN solution in the market. However the 5 GHz frequency has two possible contending technologies—IEEE 802.11a and HiperLAN2. This white paper explains the state of affairs in the wireless LAN market, the underlying technology behind the different types of wireless LANs, the over-utilized 2.4 GHz spectrum, the migration to 5 GHz band and which technology will succeed.

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