Soft handoff is an essential component of code-division multiple-access (CD
MA) digital mobile communication systems. While soft handoff has some advan
tages of system capacity and communication quality, it also has some disadv
antages arising from the excessive use of channel resources, In this study,
we propose a new control policy to alleviate effectively this excessive us
e of channel resources. For CDMA cellular mobile systems consisting of homo
geneous cells, a variety of traffic parameters are estimated by the detaile
d traffic analysis, based on which a Markovian queueing model is developed
to analyze the performance of the proposed call control policy. With a well
-known performance objective, a mathematical problem of finding optimal cal
l control parameters is proposed, along with its solution method.