Yeonwoo Lee Seung Young Park Sangboh Yun Resource Management for Fixed Relay Based Cellular Systems with Sectorization. 625-628 2006 89-B IEICE Transactions 2 http://dx.doi.org/10.1093/ietcom/e89-b.2.625 db/journals/ieicet/ieicet89b.html#LeePY06