Lu, H.-CH.-CLuLiao, WWLiaoWANJIUN LIAOYEONG-SUNG LIN2020-02-112020-02-112011https://scholars.lib.ntu.edu.tw/handle/123456789/457504Relay station placement strategy in IEEE 802.16j WiMAX networksjournal article10.1109/TCOMM.2010.110310.0905582-s2.0-79551685908https://www.scopus.com/inward/record.uri?eid=2-s2.0-79551685908&doi=10.1109%2fTCOMM.2010.110310.090558&partnerID=40&md5=94c67dcd3cb9e5a2160dad58fb25ba3e