Summary: Power Control Algorithms in Wireless
Judd Rohwer # , Chaouki T. Abdallah + , Aly ElOsery #
This paper presents a comprehensive review of the published algorithms on
power control for cellular systems. The majority of the research is focused on
Code Division Multiple Access (CDMA) systems, although a small fraction of
the reviewed literature pertains to Frequency Division Multiple Access (FDMA)
and Time Division Multiple Access (TDMA).
Power control in cellular systems is applied to numerous communication archi
tectures. For Frequency Division Multiple Access (FDMA) and Time Division
Multiple Access (TDMA) power control reduces intercell interference and im
For Code Division Multiple Access (CDMA) power control is a required part
of the base station and mobile station designs. Power Control reduces interfer
ence due to multiple users in the same frequency band. A general term that
characterizes this type of multiple access interference is the ``nearfar e#ect''.
Due to propagation characteristics the signals from mobiles closer to the base
station could overpower the signals from mobiles located farther away. With