Wireless USB Vs. 60 GHz
A few issues differentiate Wireless USB from the use of the 60 GHz band as promoted by the Wireless Gigabit Alliance:
- Line of Sight: at 60 GHz, radio communication is blocked by any intervening object, which implies the need for open line of sight. Wireless USB is based on the Ultra-WideBand (UWB) platform, which operates in the 3.1 to 10.6 GHz frequency range, and thus can pass through intervening bodies.
- Mobility: the 60 GHz technology is appealing to the wireless video market because it is supposed to deliver multi-gigabit-speed wireless communications. In order to support such heavy demands, the underlying MAC layer should be able to process this huge amount of data. For these requirements, the 60 GHz-based solutions will need higher power consumption, and bigger chips, which are less suitable for mobile units or devices.
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