Abstract
This paper investigates the combination of CDMA with OFDM and SFH as a possible solution for a multiple-access system. The CDMA component provides the inherent advantage of DS-CDMA systems incorporating a spreading signal based on PN code sequence, by providing user discrimination based on coding at the same carrier frequency and simultaneously. The OFDM component provides resistance to multipath effects making it unnecessary to use RAKE receivers for CDMA and thus avoid hardware complexity. The SFH component provides resistance to the “near-far” problem inherent in CDMA. Thus we have a system that retains the greatest advantage of CDMA viz. multiple access without the disadvantages of “near-far” problems and complexity of RAKE receivers.
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Jankiraman, M., Prasad, R. (2000). Wideband Multimedia Solution Using Hybrid CDMA/OFDM/SFH Techniques. In: Fazel, K., Kaiser, S. (eds) Multi-Carrier Spread Spectrum & Related Topics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4463-0_2
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DOI: https://doi.org/10.1007/978-1-4615-4463-0_2
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