Title :
Capacity calculation of reverse link in CDMA-based IMT-2000
Author :
Kang, Bub-Joo ; Kim, Sun-Young
Author_Institution :
Radio & Broadcasting Technol. Lab., ETRI, Taejon, South Korea
Abstract :
In this paper, the capacity for the speech and data traffic is calculated by results of the reverse link simulation of CDMA-based IMT-2000. Simulations in the reverse link are made for indoor, pedestrian, and vehicular environments, which are provided by ITU-R. Also, in these simulations, the fast power control of 1.6 kHz rate is applied. The amplitude and phase of the fading signal are estimated by using the 5-tap FIR filter, and the soft-decision Viterbi and Reed-Solomon (RS) decoding are applied. Simulation results provide the optimum ratio of pilot power to traffic power. The Erlang capacity for speech traffic, and user capacity for data traffic in all channel environments and in multiband systems are provided
Keywords :
Reed-Solomon codes; Viterbi decoding; cellular radio; channel capacity; code division multiple access; fading channels; indoor radio; multipath channels; pseudonoise codes; radio links; telecommunication traffic; 5-tap FIR filter; CDMA; Erlang capacity; IMT-2000; PN sequences; Reed-Solomon decoding; data traffic; fading signal; indoor environment; multipath fading channel; pedestrian environment; power control; reverse link simulation; soft-decision Viterbi decoding; speech traffic; user capacity; vehicular environment; Amplitude estimation; Decoding; Fading; Finite impulse response filter; Phase estimation; Power control; Reed-Solomon codes; Speech; Traffic control; Viterbi algorithm;
Conference_Titel :
TENCON 99. Proceedings of the IEEE Region 10 Conference
Conference_Location :
Cheju Island
Print_ISBN :
0-7803-5739-6
DOI :
10.1109/TENCON.1999.818655
