The CDMA system promisingly provides more capacity than AMPS. Multi-channel mechanism becomes an inevitable trend for CDMA systems when cell traffic is markedly higher than that of single-channel CDMA systems. Two multi-channel assignment schemes with soft handoff effect and corresponding channel selection rules are discussed herein and performance measures, e.g. blocking probabilities, the overall system capacity, and the capacity of each channel with respect to various channel assignment schemes, are obtained and compared. Since the same frequency channel may be assigned to two adjacent cells, effect of soft handoff is also considered which can enhance system capacity. Simulation results indicate that SIR based selection scheme is preferable to the other scheme.
|Number of pages||7|
|Journal||Journal of the Chinese Institute of Electrical Engineering, Transactions of the Chinese Institute of Engineers, Series E/Chung KuoTien Chi Kung Chieng Hsueh K'an|
|State||Published - May 2002|
- Channel assignment