Characterizing Frequency Reuse D minimum distance between centers of cells that use the same band of frequencies(called cochannels,.同波道)（相距最近的同频小 区中心间的距离) ■R=radius of a cel d distance between centers of adjacent cells(d R) ■N=number of cells in repetitioust(重复的)pattern ·Reuse factor Each cell in pattern uses unique band of frequencies Hexagonal cell pattern,following values of N possible ·N=2+J2+(1×J),I,J=0,1,2,3,. Possible values of N are 1,3,4,7,9,12,13,16,19,21,. ■Q=D/R=√3N (称为同频复用比例) ■ D/d =N Q的值越小容量越大；Q值大可以提高传播质量，同频干扰小Characterizing Frequency Reuse  D = minimum distance between centers of cells that use the same band of frequencies (called cochannels,同波道)(相距最近的同频小 区中心间的距离)  R = radius of a cell  d = distance between centers of adjacent cells (d = R)  N = number of cells in repetitious(重复的) pattern  Reuse factor  Each cell in pattern uses unique band of frequencies  Hexagonal cell pattern, following values of N possible  N = I2 + J2 + (I x J), I, J = 0, 1, 2, 3, .  Possible values of N are 1, 3, 4, 7, 9, 12, 13, 16, 19, 21, .  Q=D/R= （称为同频复用比例）  D/d =  Q的值越小容量越大;Q值大可以提高传播质量,同频干扰小 3N N