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Towards a High-Throughput and Low Power Reconfigurable Architecture of Advanced OFDM Modulator for Software-Defined Radio Systems

Auteur(s) : C. Sahnine, N.-E. Zergainoh, D. Callonnec, F. Pétrot

Doc. Source: IEEE International Midwest Symposium on Circuits and Systems (MWSCAS’07)

Publisher : IEEE

Pages : 1205-1208

Doi : 10.1109/NEWCAS.2007.4488010

OFDM modulation is widely used in several communications systems. An advanced modulation scheme, called OFDM/OQAM with IOTA pulse shaping has been identified as one potential method to enhance the performance of these systems. Nevertheless, the IOTA filtering increases the architecture complexity especially for high-throughput communication of the order of about of hundreds of MHz. In this paper, we propose a coarse-grained configurable architecture of advanced OFDM modulator/demodulator using parallel architecture and combined with pipelined strategy suitable for software defined radio. This solution offers a good tradeoff between scalability, performance and low power.