Title :
Behavior and performance of power controlled IS-95 reverse-link under soft handoff
Author :
Ling, Fuyun ; Love, Bob ; Wang, Michael Mao
Author_Institution :
Cellular Infrastruct. Group, Motorola Inc., Arlington Heights, IL, USA
Abstract :
From our study of the power controlled reverse-link behavior, we observe that the received signals from multiple links under soft-Handoff and power control are not independent but negatively correlated. The cause of the negative correlation are investigated through analysis and simulation. It is shown that due to the negative correlation, the required signal to interference ratio (SIR) to achieve an given post selector frame-error rate (FER) can be up to 2 dB less than previous estimated based on the independent assumption. Such an observation also leads to a more accurate reverse-link capacity estimate. Finally, it is pointed out that such performance is practically attainable with an appropriate power control algorithm
Keywords :
cellular radio; channel capacity; code division multiple access; correlation methods; land mobile radio; power control; pseudonoise codes; radio links; radiofrequency interference; spread spectrum communication; telecommunication control; telecommunication standards; DS-CDMA; digital mobile cellular communications; direct-sequence code division multiple access; frame-error rate; interim standard; multiple links; negatively correlated signals; performance; personal communication systems; power control algorithm; power controlled IS-95 reverse-link; received signals; reverse-link capacity estimate; signal to interference ratio; simulation; soft handoff; Analytical models; Code standards; Communication standards; Error analysis; Mobile communication; Multiaccess communication; Personal communication networks; Power control; Power measurement; Speech;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.600464
