Flexible allocation of capacity in multi-cell CDMA networks
Robert Akl, M.V. Hegde, Mort Naraghi‐Pour, P.S. Min · 2003
The effect of reverse power levels on the capacity of a code-division multiple-access (CDMA) cellular network is evaluated. The inter-cell and intra-cell interferences of every cell on every other cell are first calculated for a given network topology. Based on this, the nominal power of users is increased by a factor we call the power compensation factor (PCF) which enables small cells to overcome the excessive interference from adjacent large cells. The PCFs provide flexibility in the allocation of capacity. By changing the PCFs, capacity can be exchanged between cells. The implied cost of the network capacity function with respect to the PCFs is calculated and used to maximize the capacity of the network by applying a gradient descent algorithm.