Résumé:
Efficiency and adaptivity play a major role in the
design of fourth-generation wireless systems (4G). These systems
should be efficient in terms of bandwidth and power allocation.
Moreover, low complexity transceivers are expected in this type
of system.
This paper outlines the basic principles of a promising technique for future telecommunications system, called OWDMIDMA (Orthogonal Wavelength-Division Multiplexing-Interleave
Division Multiple Access). A comparison with other alternative
technologies such OWSS (OWDM spread-spectrum) is provided.
Some attractive features of OWMD-IDMA are explained by
estimating the BER (bit error rate) of system, including low cost
iterative multi-user detection, flexible rate adaptation, spectral
and power efficiency.
