PROBLEM TO BE SOLVED: To provide a method of efficiently reducing interference between cells. SOLUTION: For restrictive reuse, each cell (or each sector) is assigned (1) a set of usable subbands that may be allocated to users in the cell and (2) a set of forbidden subbands that is not used. The usable and forbidden sets for each cell are orthogonal to one other. The usable set for each cell partially overlaps the forbidden set for each neighboring cell. If a user (u) observes/causes high level of interference from/to a neighboring cell (y), then the user (u) may be allocated subbands from a "restricted" set containing subbands included in both the usable set for a cell (x) and the forbidden set for a cell (y). The user (u) would then observe/cause no interference from/to cell (y). The subband restriction may be extended to avoid interference from multiple neighboring cells. COPYRIGHT: (C)2010,JPO&INPIT