Wavelet-based MC-CDMA cellular systems
- 7 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 145-149
- https://doi.org/10.1109/isssta.2000.878100
Abstract
This paper presents work carried out on a multi-carrier code division multiple access (MC-CDMA) for a down-link cellular radio systems. The MC-CDMA system carries out energy spreading in all available sub-channels or in the frequency domain. It also performs multi-carrier modulation using a set of orthogonal (or biorthogonal) filters. The optimisation of these filters is done based on their time-frequency characteristics and depends also on the application. Here the biorthogonal filters are implemented with M-band wavelet-based system in a form of cosines modulated filters to configure a perfect reconstruction system. The simulation results show that this WB-MC-CDMA system suffers lower interchannel interference, thus making its response more robust against multipath fading and narrow band interference or jamming signal.Keywords
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