Title :
Performance of code-division multiple-access orthogonal codes over measured indoor radio channels
Author :
Chase, M. ; Pahlavan, K.
Author_Institution :
Kodak EPS, Bilerica, MA, USA
Abstract :
The authors analyze the performance of M-ary CDMA (code-division multiple access) systems over fading multipath indoor radio channels using channel measurements from five different locations. The performance is presented as the probability of error as a function of signal-to-noise ratio for a given number of active transmitters. The particular examples use the measured multipath characteristics from five manufacturing areas and the bandwidth assigned by the FCC. Performance calculations based on actual channel measurements show little difference when no external diversity is used. Maximal-ratio combining with two orders of external diversity increases the performance. The improvement varies among the different areas
Keywords :
code division multiple access; codes; fading; mobile radio systems; radiowave propagation; spread spectrum communication; telecommunication channels; FCC; M-ary CDMA; SNR; bandwidth; channel measurements; code-division multiple-access; error probability; external diversity; fading multipath indoor radio channels; maximal ratio combining; measured indoor radio channels; orthogonal codes; performance measurement; signal-to-noise ratio; spread spectrum communication; transmitters; Area measurement; Diversity reception; Fading; Indoor radio communication; Manufacturing; Multiaccess communication; Particle measurements; Performance analysis; Radio transmitters; Signal to noise ratio;
Conference_Titel :
Communications, 1991. ICC '91, Conference Record. IEEE International Conference on
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-0006-8
DOI :
10.1109/ICC.1991.162406
