Capacity analysis of forward link with deterministic power model in CDMA systems with adaptive antenna array and soft handoff

In this paper, we analyze the capacity of the forward link for CDMA systems with adaptive antenna arrays, considering soft handoffs. We take it into account that a mobile near a cell boundary can receive from two or more base stations and use MRC. For the capacity analysis we divide a cell into two regions: the region in which the soft handoff occurs and the one in which the handoff does not occur. Then, we compute the maximum number of users a base station can support under the constraint of acceptable outage probability. We assume that there is no limitation on the base station´s transmission power, so a cell´s capacity is limited by the interference between signals intended for different users in the same cell and in different cells.