BER performance evaluation for multicarrier code division multiple access over generalized k-μ fading channels

Multicarrier code division multiple access
(MC-CDMA) system has received a considerable attention
from researchers owing to its great potential in achieving
high data rates transmission in wireless communications.
Due to the detrimental effects of multipath fading the
performance of the system degrades. Similarly, the impact
of non-orthogonality of spreading codes can exist and
cause interference. This paper addresses the performance
of multicarrier code division multiple access system under
the influence of frequency selective generalized ĸ-µ fading
channel and multiple access interference caused by other
active users to the desired one. The average bit error rate
is derived and expressed in Gauss hypergeometric
functions. Maximal ratio combining diversity technique is
utilized to alleviate the deleterious effect of multipath
fading.