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A comparison of wi-fi and wimax with case studies - Florida State ...

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- Transformation <strong>of</strong><br />

external network data<br />

into MAC SDUs;<br />

- Payload header suppression<br />

- System Access<br />

- B<strong>and</strong><strong>wi</strong>dth Allocation<br />

- Connection set-up<br />

- Connection maintenance<br />

-QoS<br />

- Authentication<br />

- Secure key exchange<br />

-Encryption<br />

Figure 5-18 MAC Layer Model<br />

Samsung is the major manufacturer producing the ACRs <strong>and</strong> RASs. In June 2007, Samsung<br />

won the WiMAX World Europe 2007 Award by U-RAS Premium Base Station in System<br />

Design. Figure 5-19[83] is the technology data <strong>and</strong> the picture for U-RAS Premium Base Station.<br />

Figure 5-20[83] is the information for ACRs. Table 5-8 is the <strong>comparison</strong> <strong>of</strong> WiBro <strong>and</strong> WiMax.<br />

90

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