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Ultra-Wideband Communications: Fundamentals and Applications by Faranak Nekoogar

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A.1. 802.11a/b WLAN Systems

We start the derivations by revisiting the interference scenario considered in Figure 4-2, where a WLAN node is surrounded by several UWB transmitters in a two-dimensional setting. The scenario is reproduced here as Figure A-1. The inner circle defines the boundary of a UWB-free zone; that is, no UWB transmitters are closer to the victim than Rmin. In between the inner and the outer circles (given by Rmax), the UWB transmitters are distributed uniformly over the surface.

Figure A-1. The interference scenario considered: a WLAN node placed among UWB transmitters in communication with an access point

If we now let Rmax tend to infinity, the victim receiver experiences a total interference power ...

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