Diversity performance of a wavelet-packet-based multicarrier multicode CDMA communication system
IEEE Transactions on Vehicular Technology
Department of Electrical and Computer Engineering, Applied Science University, Amman 11931, Jordan; Department of Electrical and Computer Engineering, The University of Akron, Akron, OH 44325-3904, United States; Digital Bridge Institute, Abuja, Nigeria
In this paper, we propose and analyze a novel multicarrier (MC) multicode (MCD) code-division multiple-access (CDMA) system employing wavelet packets (WPs) for modulation. This system can achieve robust performance against multipath fading due to the localization of WPs in the time and frequency domains. The analytical framework is presented, and the system performance with diversity is evaluated by means of bit error rates and the outage probability out. Since WPs have lower sidelobes compared to sinusoidal carriers, our system is very effective in reducing the problem of intercarrier interference. The effects of system parameters (e.g., order of diversity, fading parameters, and WP type) were investigated. The major contribution is to compare the performance of the system to that of the MC/MCD-CDMA system that is based on sinusoidal carriers. The results reveal a considerable performance improvement of our proposed system over the MC/MCD-CDMA system. © 2008 IEEE.
Bit error rate; Diversity reception; Multicarrier modulation; Multipath fading; Packet switching; Probability; Wave interference; Wavelet analysis; Intercarrier interference; Multicarrier; Multicode; Outage probability; Wavelet packets; Code division multiple access