Performance analysis of GFDM in various fading channels
ISSN: 0332-1649
Article publication date: 4 January 2016
Abstract
Purpose
The purpose of this paper is to study the performance of generalized frequency division multiplexing (GFDM) in some frequency selective fading channels. The exact symbol error rate (SER) expressions in Hoyt (Nakagami-q) and Weibull-v fading channels are derived. A GFDM transceiver simulation test bed is provided to validate the obtained analytical expressions.
Design/methodology/approach
Modern cellular system demands higher data rates, very low-latency transmissions and sensors with ultra low-power consumption. Current cellular systems of the fourth generation (4G) are not able to meet these emerging demands of future mobile communication systems. To address this requirement, GFDM, a novel multi-carrier modulation technique is proposed to satisfy the future needs of fifth generation technology. GFDM is a block-based transmission method where pulse shaping is applied circularly to individual subcarriers. Unlike traditional orthogonal frequency division multiplexing, GFDM transmits multiple symbols per subcarrier. The authors have used the probability density function approach in solving the final analytical expressions.
Findings
Detailed analysis of GFDM performance under Hoyt-q, Weibull-v and Log-Normal Shadowing fading channels. Exact analytical formulae were derived which support the simulations carried out by authors and other authors. The exact dependence of SER on fading parameters and roll-off factor α in the raised cosine pulse shape filter was determined.
Practical implications
Development and fabrication of high-performance GFDM systems under fading channel conditions.
Originality/value
Theoretical support to simulated system performance.
Keywords
Acknowledgements
The support of the Euphrates Erasmus Mundus PhD exchange programme of the European Union is gratefully acknowledged as well as the helpfull comments from the reviewers.
Citation
Bandari, S.K., Mani, V.V. and Drosopoulos, A. (2016), "Performance analysis of GFDM in various fading channels", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 35 No. 1, pp. 225-244. https://doi.org/10.1108/COMPEL-06-2015-0215
Publisher
:Emerald Group Publishing Limited
Copyright © 2016, Emerald Group Publishing Limited