diff --git a/sensors/radio/model/WiFiModelLogDistCeiling.h b/sensors/radio/model/WiFiModelLogDistCeiling.h
index 0ee8913..d9834d6 100644
--- a/sensors/radio/model/WiFiModelLogDistCeiling.h
+++ b/sensors/radio/model/WiFiModelLogDistCeiling.h
@@ -6,6 +6,8 @@
 #include "../../../Assertions.h"
 #include "WiFiModel.h"
 #include "LogDistanceModel.h"
+#include "../VAPGrouper.h"
+#include "../../../misc/Debug.h"
 
 /**
  * signal-strength estimation using log-distance model
@@ -71,6 +73,20 @@ public:
 
 	}
 
+	/** load AP information from the floorplan. use the given fixed TXP/EXP/WAF for all APs */
+	void loadAPs(const Floorplan::IndoorMap* map, const VAPGrouper& vg, const float txp = -40.0f, const float exp = 2.5f, const float waf = -8.0f) {
+
+		for (const Floorplan::Floor* floor : map->floors) {
+			for (const Floorplan::AccessPoint* ap : floor->accesspoints) {
+				const APEntry ape(ap->getPos(floor), txp, exp, waf);
+				const MACAddress mac = vg.getBaseMAC(MACAddress(ap->mac));
+				Log::add("WiModLDC", "AP: " + ap->mac + " -> " + mac.asString());
+				addAP(MACAddress(mac), ape);
+			}
+		}
+
+	}
+
 	/** make the given AP (and its parameters) known to the model */
 	void addAP(const MACAddress& accessPoint, const APEntry& params) {
 
@@ -79,7 +95,7 @@ public:
 		Assert::isBetween(params.txp, -50.0f, -30.0f, "TXP out of bounds [-50:-30]");
 		Assert::isBetween(params.exp, 1.0f, 4.0f, "EXP out of bounds [1:4]");
 
-		Assert::equal(accessPoints.find(accessPoint), accessPoints.end(), "AccessPoint already present!");
+		Assert::equal(accessPoints.find(accessPoint), accessPoints.end(), "AccessPoint already present! VAP-Grouping issue?");
 
 		// add
 		accessPoints.insert( std::pair<MACAddress, APEntry>(accessPoint, params) );