Title :
Conditional outage probability evaluation in WCDMA at high data rates
Author_Institution :
Telecommun. Lab., Oulu Univ., Finland
Abstract :
Wideband CDMA system capacity is studied at relatively high rate circuit-switched data services. Capacity is evaluated analytically against the conditional outage criterion. The probability of outage varies depending on the cellular interference geometry, propagation parameters, carrier-to-interference ratio target, traffic load and power control accuracy. Fenton-Wilkinson (1960) and Schwartz-Yeh (1982) lognormal sum approximations are used in multiuser interference modeling. Either single-code or multicode techniques can be used to generate high rate data services. Results show a wide span in capacity for a given outage criterion depending on the variability of the key system parameters
Keywords :
broadband networks; cellular radio; code division multiple access; data communication; log normal distribution; radiofrequency interference; telecommunication traffic; Fenton-Wilkinson approximation; Schwartz-Yeh approximation; WCDMA; carrier-to-interference ratio; cellular interference geometry; cellular radio; circuit-switched data services; conditional outage criterion; high data rates; intercell interference; intracell interference; lognormal sum approximation; multicode techniques; multiuser interference modeling; outage probability evaluation; power control; propagation parameter; single-code techniques; traffic load; wideband CDMA system capacity; Broadband antennas; Circuits; Fading; Interference; Multiaccess communication; Power control; Power system modeling; Quality of service; Random variables; Wideband;
Conference_Titel :
Spread Spectrum Techniques and Applications, 2000 IEEE Sixth International Symposium on
Conference_Location :
Parsippany, NJ
Print_ISBN :
0-7803-6560-7
DOI :
10.1109/ISSSTA.2000.878118
