Publisher : International Journal of Engineering Research and Technology
Campus : Coimbatore
Center : Computational Engineering and Networking
Verified : Yes
Year : 2014
Abstract : Out of band power emission is considered as a serious issue in multi carrier modulation techniques such as orthogonal frequency division multiplexing (OFDM). Precoding is a good solution for this issue. Precoder maps the original modulated signal vector to a new vector, whose elements are close to that of the original but the out of band power spectrum is minimal . In this paper, we made a comparative study of two recently introduced precoder formulations.