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The group behind both fixed and mobile WiMax flavors offers a chunk of very technical details about mobile WiMax’s characteristics: This is the first of two parts, providing a huge amount of extremely technical detail about how signals will be encoded, provisioned, and propagated, including quality of service (QoS) tagging. There’s some interesting detail in how frequency and time diversity in the use of OFDMA—an encoding method that divides a spectrum band into narrow sub-carriers—can allow many simultaneous users to have a high degree of reliable provisioned service that’s designed to minimize interface. In Wi-Fi, all devices use the entire range of frequencies while transmitting; with mobile WiMax, there will be dynamic sub-carrier and time slot assignments.
The second part of this report will compare cellular technology with mobile WiMax.
Posted by Glennf at February 28, 2006 3:18 PM