Capacity evaluation of forward link in a CDMA system supporting high data-rate service
Seung Sik Choi, Dong‐Ho Cho · 2002
In the case of providing a high data-rate service, a capacity analysis of the CDMA forward link is required to allocate optimally high data-rate users. To solve this problem, we first analyze the capacity of the CDMA forward link based on optimal power control. In a multi-cell environment, the intracell interference and intercell interference are derived. To show the capacity impact of high data-rate users, we introduce a location dependent factor, which is the ratio of intercell interference to intracell interference. Considering the location dependent factor, we propose a coordinated allocation scheme, which can be used to allocate high data-rate users in sectorized cells. As a result, we show the capacity impact of high data-rate users according to the location variation. It is also shown that the outage probability can be decreased, when the coordinated allocation scheme is applied.