Precoded Circular Filterbank Multicarrier Communications: A Study

Abstract

Future wireless communication systems are demanding a more flexible physical layer. GFDM is a block filteredmulticarrier modulation scheme proposed to add multiple degrees of freedom and to cover other waveforms ina single framework. This paper applies Walsh-Hadamardprecoding scheme to C-FBMC to exploit the frequency diversityin a multipath channel. The theoretical approximation for thebit error rate (BER) of the resultant scheme, abbreviated WHTC-FBMC, is derived. Its BER performance is also comparedto the performance of precoded GFDM.