Title :
Statistical model of W-CDMA signals over realistic multipath channel
Author :
Oh, DongJin ; Lee, Gueesang ; Choi, Deokjai ; Kim, Cheol-Sung
Author_Institution :
Comput. Sci. Dept., Chonnam Nat. Univ., Kwangju, South Korea
Abstract :
This paper proposes a statistical model of the wideband code division multiple access (W-CDMA) signals. The performance of a W-CDMA system is evaluated by calculating the average bit error rate (BER) which is derived from the probability distribution of the W-CDMA receiver output. If a statistical model of the receiver output is available, the performance evaluation becomes much simpler and it enables diverse analyses of the system for channel coding and other purposes. In this paper the statistical model of W-CDMA signals, more specifically those of the receiver outputs, is represented as a Nakagami-m distribution, considering two cases of bandwidths and channel environments. The adequacy of a statistical model is verified by chi-square test of 1% significance level and the comparison of BER obtained from simulation data and the statistical model
Keywords :
cellular radio; code division multiple access; error statistics; multipath channels; probability; radio receivers; statistical analysis; 10 MHz; 3G mobile communication; 5 MHz; BER; Nakagami-m distribution; RAKE receiver; W-CDMA signals; average bit error rate; channel coding; chi-square test; multipath channel; performance evaluation; probability distribution; receiver output; statistical model; third generation mobile communication; wideband code division multiple access; Bandwidth; Bit error rate; Computational modeling; Mathematical analysis; Multiaccess communication; Multipath channels; Nakagami distribution; Probability distribution; System testing; Wideband;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944862
