In this paper we consider the use of optimum-based reception for OFDM (Orthogonal Frequency Division Multiplexing) signals with M-QAM constellations that are subjected to a clipping operation in their transmission chain. It is shown that the nonlinear distortion that comes from that operation does not lead to performance losses and can even lead to performance improvements relative to the linear transmission. It is also presented a sub-optimum receiver that reduces drastically the complexity relative to the optimum receiver and achieves remarkable gains when compared to the typical OFDM receivers.
|Title of host publication||Proceedings of the 10th International Symposium on Wireless Communication Systems (ISWCS 2013)|
|Publication status||Published - 1 Jan 2013|
|Event||ISWCS 2013: 10th International Symposium on Wireless Communication Systems - |
Duration: 1 Jan 2013 → …
|Conference||ISWCS 2013: 10th International Symposium on Wireless Communication Systems|
|Period||1/01/13 → …|
Montezuma de Carvalho, P. M. D. A. B., Dinis, R. M. H. D. M., Oliveira, R. A. D., & DEE Group Author (2013). Improving the Performance of Nonlinear OFDM Schemes with ML-based Receivers. In Proceedings of the 10th International Symposium on Wireless Communication Systems (ISWCS 2013) (pp. 1-4)