Abstract—Physicallayersecurity(PLS)hasbeenextensivelyexploredasanalternativetoconventionalcryptographicschemesforsecuringwirelesslinks.Oflate,theresearchcommunityisactivelyworkingtowardsexploitingcooperativecommunicationtechniquestofurtherimprovethesecurity.Manystudiesareshowingthatthecoope