By Topic

Performance analysis of M-ary DS-CDMA systems with imperfect power control

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Chiang, C.-T. ; Dept. of Electr. Eng., I-Shou Univ., Kaohsiung, Taiwan

The system performance of an M-ary DS-CDMA system is investigated for a coherent reception of uplink signals. In addition, the effect of imperfect power control resulting in a lognormal distribution of signal power on the system performance is also considered. A theoretical expression for the bit error rate (BER) performance of M-ary DS-CDMA systems with imperfect power control is achieved. The results show that the M-ary orthogonal modulation can offer performance improvement in terms of BER and capacity, even under imperfect power control. However, the advantage of M-ary technology is almost lost due to bad power control, even increasing the M value. For a specified performance, the derived results can be used as guides in evaluating the required quality of power control for an M-ary DS-CDMA system. Simulation results verify the theoretical derivations.

Published in:

Communications, IEE Proceedings-  (Volume:151 ,  Issue: 6 )