Comparison of Filter Bank Based Multicarrier Systems with OFDM

Abstract

Multicarrier systems are favored for contemporary and future, both stationary and mobile, communication systems. They promise a high bandwidth efficiency and at the same time the capability to cope with frequency selective (radio) channels. Unfortunately, the peak-to-average power ratio (PAPR) is increased at the transmitter of multicarrier systems compared to single carrier systems. Filter bank based multi-carrier systems, i. e. transmultiplexer filter banks, provide a much better spectral shaping of the subcarriers than orthogonal frequency division multiplexing (OFDM). This leads to several advantages against OFDM systems, which are highlighted in this contribution. Particularly, the PAPR performance of filter bank based multicarriers systems and OFDM are compared