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ns-2 module for ieee 802.22 standard

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<strong>802.22</strong> Inter-Cell Synchronization<br />

• Synchronization of QPs <strong>for</strong> better<br />

detection of primary users with<br />

inter-cell beaco<strong>ns</strong><br />

– E.g. two overlapping BSs, BS 1 and<br />

BS 2 . BS 1 sends an inter-cell<br />

beacon to BS 2 . BS 2 tries to slides<br />

frames with the following rule:<br />

• If (FDC – O + O T ≤ ceil (FDC/2)<br />

x Rv<br />

), slide frames right by FDC – O T x<br />

+ O R v<br />

• Else slide frames left by (O T x -<br />

O R v ).<br />

• FDC: Frame Duration Code (time<br />

duration)<br />

Source: Bian, K. and Park, J. 2008. Security<br />

vulnerabilities in IEEE <strong>802.22</strong>.<br />

2/3/2010<br />

Ns-2 Module <strong>for</strong> IEEE <strong>802.22</strong> Standard<br />

19

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