Title :
On the capacity of a cellular CDMA system
Author :
Gilhousen, Klein S. ; Jacobs, Irwin M. ; Padovani, Roberto ; Viterbi, Andrew J. ; Weaver, Lindsay A., Jr. ; Wheatley, Charles E., III
Author_Institution :
QUALCOMM Inc., San Diego, CA, USA
fDate :
5/1/1991 12:00:00 AM
Abstract :
It is shown that, particularly for terrestrial cellular telephony, the interference-suppression feature of CDMA (code division multiple access) can result in a many-fold increase in capacity over analog and even over competing digital techniques. A single-cell system, such as a hubbed satellite network, is addressed, and the basic expression for capacity is developed. The corresponding expressions for a multiple-cell system are derived. and the distribution on the number of users supportable per cell is determined. It is concluded that properly augmented and power-controlled multiple-cell CDMA promises a quantum increase in current cellular capacity
Keywords :
cellular radio; channel capacity; code division multiple access; digital radio systems; radiotelephony; cellular CDMA; cellular radio; channel capacity; code division multiple access; digital radio; hubbed satellite network; interference-suppression; multiple-cell system; power control; radiotelephony; single-cell system; terrestrial cellular telephony; Digital modulation; Frequency division multiaccess; Jacobian matrices; Multiaccess communication; Satellites; Spread spectrum communication; Telephony; Time division multiple access; Transmitters; Viterbi algorithm;
Journal_Title :
Vehicular Technology, IEEE Transactions on
