src/ap/acs.c

41  * 2. interference factor is calculated for each channel
65  * Survey interference factor implementation details
69  * The survey interference factor is defined as the ratio of the
105  * All this "interference factor" is purely subjective and only time
108  * of the interference factor then is dependent on what the card itself
114  * The above channel interference factor is calculated with no respect to
123  * interference factor is computed by summing up interferences of each channel
126  * Note: This implies base channel interference factor must be non-negative
139  * ACS:  * interference factor average: 0.0557166
146  * ACS:  * interference factor average: 0.050832
153  * ACS:  * interference factor average: 0.0148838
160  * ACS:  * interference factor average: 0.0160801
167  * ACS:  * interference factor average: 0.232244
174  * ACS:  * interference factor average: 0.232298
181  * ACS:  * interference factor average: 0.195031
188  * ACS:  * interference factor average: 0.0865885
195  * ACS:  * interference factor average: 0.00993022
202  * ACS:  * interference factor average: 0.0136033
209  * ACS:  * interference factor average: 0.0271605
216  * ACS:  * interference factor average: 0.0148992
223  * ACS:  * interference factor average: 0.0260179
238  * ACS: Ideal channel is 13 (2472 MHz) with total interference factor of 0.0680776
295 	long double factor, busy, total;
316 	factor = pow(10, survey->nf / 5.0L) +
321 	return factor;
509 		wpa_printf(MSG_DEBUG, "ACS:  * interference factor average: %Lg",
559  * channel has a smaller interference factor as long as it is not better by more
568  * option (survey, BSS, spectral, ...). chan->interference factor must be
576 	long double factor, ideal_factor = 0;
637 		factor = 0;
639 			factor = chan->interference_factor;
648 				factor += adj_chan->interference_factor;
660 		 * channel interference factor. */
666 					factor += ACS_ADJ_WEIGHT *
674 					factor += ACS_NEXT_ADJ_WEIGHT *
682 					factor += ACS_ADJ_WEIGHT *
690 					factor += ACS_NEXT_ADJ_WEIGHT *
697 		factor /= total_weight;
715 			factor *= bias->bias;
718 				   chan->chan, factor, bias->bias);
722 				   chan->chan, factor);
726 		    (!ideal_chan || factor < ideal_factor)) {
727 			ideal_factor = factor;
737 		wpa_printf(MSG_DEBUG, "ACS: Ideal channel is %d (%d MHz) with total interference factor of %Lg",