Title :
Power distribution and soft handoff for downlink channels in cellular CDMA systems
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada
Abstract :
Power distribution and soft handoff in cellular CDMA downlinks are studied in this paper. An optimum power distribution law is developed in order to guarantee the required signal-to-interference ratio for each connection. Based on this, soft handoff decisions are made at the mobile switching center for each connection based on the current channel conditions and resource availability in each cell. Simulation results show that soft handoff can improve the connection reliability and the system capacity in the downlink transmissions.
Keywords :
cellular radio; code division multiple access; telecommunication channels; telecommunication switching; cellular CDMA system; channel condition; code division multiple access; connection reliability; downlink channel; downlink transmission; mobile switching center; optimum power distribution law; power distribution; resource availability; signal-to-interference ratio; soft handoff; system capacity; Availability; Diversity reception; Downlink; Fading; Interference; Multiaccess communication; Power distribution; Power system reliability; Resource management; Signal processing;
Conference_Titel :
Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-7700-1
DOI :
10.1109/WCNC.2003.1200677
