Title :
Signal and interference statistics of a CDMA system with feedback power control
Author :
Ariyavisitakul, S. ; Chang, Li Fung
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
A feedback power control approach that allows power commands to be updated at a higher rate than the rate of multipath fading is investigated. The signal and interference statistics as received at the base stations after power control are obtained for a simulated direct-sequence code-division multiple-access (CDMA) system, which includes multiple base stations with diversity receivers and a large number of power-controlled users continuously moving at various speeds. It is shown that often-used analyses based on perfect average power control lead to optimistic capacity results (by 25% to 60%) because interference is underestimated by 1 to 2 dB
Keywords :
cellular radio; code division multiple access; diversity reception; fading; feedback; power control; radiofrequency interference; spread spectrum communication; statistical analysis; telecommunications control; CDMA system; DS-CDMA; base stations; capacity; cellular radio; direct-sequence code-division multiple-access; diversity receivers; feedback power control; interference statistics; multipath finding rate; power commands; signal statistics; spread spectrum communication; Base stations; Error correction; Fading; Feedback; Interference; Interleaved codes; Multiaccess communication; Power control; Shadow mapping; Statistics;
Conference_Titel :
Global Telecommunications Conference, 1991. GLOBECOM '91. 'Countdown to the New Millennium. Featuring a Mini-Theme on: Personal Communications Services
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-87942-697-7
DOI :
10.1109/GLOCOM.1991.188616
