SPECTRUM RESOURCES MANAGEMENT ON 2-TIER CELLULAR NETWORKS

For two-tier cellular network design, resource management between tier s is an important issue to be studied. In this paper, in order to use the network resources preciously, we considered sharing of the availab le spectrum between the tiers. We evaluate this sharing for two networ k architectures. In the first architecture, called System I, DS-CDMA i s deployed in both tiers. In the second architecture, called System II , TDMA is deployed for users in the microcell tier and CDMA for macroc ell users. Using analytically evaluated intercell interference for a t wo-tier cellular system, we will show the performance and the allowabl e system capacity for the above systems.