*,thesecondarynetworkpercolatesatalltimet[0,i.e.,thereexistsalwaysaninfiniteconnectedcomponentinthesecondarynetworkunderthetime-varyingspectrumavailability.Furthermore,theupperandlowerboundsofks*arederivedanditisshownthattheydonotdependontherandomlocationsofprimaryandsecon