Title :
Performance of concatenated Walsh/PN spreading sequences for CDMA systems
Author :
Sebeni, Johnson O. ; Leung, Cyril
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada
Abstract :
The bit error rate (BER) on the forward link of a single cell CDMA system using concatenated Walsh/m-sequences is studied. The BER results obtained by the Gaussian approximation, by the characteristic function approach and by Monte Carlo simulation are compared. A modified RAKE receiver is found to have better performance than the standard RAKE or correlation receivers especially for Rician faded multipath channels with Rice factors greater than 2 dB
Keywords :
Gaussian processes; Rician channels; approximation theory; cellular radio; code division multiple access; concatenated codes; error statistics; m-sequences; multipath channels; multiuser channels; pseudonoise codes; radio links; radio receivers; spread spectrum communication; BER; Gaussian approximation; Monte Carlo simulation; Rice factors; Rician faded multipath channel; bit error rate; characteristic function; concatenated Walsh/PN spreading sequences; concatenated Walsh/m-sequences; correlation receiver; forward link; modified RAKE receiver; performance; single cell CDMA system; standard RAKE receiver; AWGN; Bit error rate; Concatenated codes; Delay; Fading; Gaussian approximation; Multiaccess communication; Multipath channels; RAKE receivers; Rician channels;
Conference_Titel :
Vehicular Technology Conference, 1999 IEEE 49th
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-5565-2
DOI :
10.1109/VETEC.1999.778051
