An Overview of Generalized Frequency Division Multiplexing (GFDM)

TL;DR

This paper provides a comprehensive overview of GFDM, a promising waveform for future wireless systems, covering transceiver design, implementation challenges, and applications like cognitive and full-duplex radio.

Contribution

It systematically reviews GFDM's transceiver components, non-ideal issues, and applications, offering a thorough synthesis of current research and challenges.

Findings

Analysis of GFDM transceiver components

Discussion on synchronization and channel estimation issues

Exploration of GFDM applications in cognitive and full-duplex radios

Abstract

As a candidate waveform for next-generation wireless communications, generalized frequency division multiplexing (GFDM) features several decent properties which make it promising. In this paper, we systematically overview the research about GFDM. We start with GFDM transceivers with their main components, which consist of prototype filter design, low-complexity transceiver implementation, and symbol detection algorithms. Then, we investigate a couple of non-ideal issues of GFDM, including synchronization issues, channel estimation, and in-phase/quadrature (I/Q) imbalance compensation. Lastly, we study the applications of GFDM-based cognitive radio and full-duplex radio which boast of a high spectral efficiency.