The CC constructs an interference graph based on measurements
from HeNBs. When a HeNB is powered on, it
listens to neighboring HeNB control channel and reference
signal transmissions. This enables each HeNB to determine cell
identification of its neighboring HeNBs and to measure the path
loss from each of them [9]. Moreover, HUEs can send to the
CC measurement reports of Received Signal Strength Indicator
(RSSI) of neighboring HeNBs obtained during handover.
Based on these measurements from HeNBs as well as from
HUEs, the CC constructs an interference graph where each
node in the graph represents a HeNB and each directed edge
represents an interference/jamming condition between HeNBs.