PERFORMANCE EVALUATION AND APPLICATION OF CHANNEL OFFSET SCHEMES IN INDOOR CHANNEL ASSIGNMENTS

We deal with channel offset schemes and their application in three-dim ensional (3-D) frequency reuse environments with ideal cubic microcell s, Formulas are derived to calculate channel reuse distances (CRD's) a nd interchannel usage distances (IUD's) for a given offset degree. For an indoor personal communication network (PCN), an algorithm is propo sed for fixed channel assignment with channel offset. The spectral eff iciency of channel offset schemes is discussed and the results show th at compared to the channel offsetless scheme, channel offset schemes m ake more efficient use of limited spectrum resources.