| Issue |
ITM Web Conf.
Volume 27, 2019
The 9th International Conference on Digital Information and Communication Technology and its Applications (DICTAP2019)
|
|
|---|---|---|
| Article Number | 01001 | |
| Number of page(s) | 6 | |
| Section | Wireless Communications | |
| DOI | https://doi.org/10.1051/itmconf/20192701001 | |
| Published online | 10 May 2019 | |
Pilot Placement Schemes for Channel Estimation of Proposed 5G-GFDM System
1 Department of Electrical Engineering, College of Electrical and Mechanical Engineering, NUST, Islamabad, Pakistan
2 Department of Computer Engineering, College of Electrical and Mechanical Engineering, NUST, Islamabad, Pakistan
* Corresponding author: p116006@nu.edu.pk
Orthogonal Frequency Division Multiplexing (OFDM) is a highly regarded technique used in the 4G mobile communication systems to provide reliable communication and high data rates due to the orthogonality between its sub carriers. However, it cannot be used in the next generation cellular system i.e. 5G. Thus, a new technique Generalized Frequency Division Multiplexing (GFDM) has been proposed to meet the demands of the next generation systems, which are higher data rates than 4G, minimum response time, lower power consumption etc. GFDM is a non-orthogonal, multicarrier scheme, which seems to fulfil the requirements of the new wireless communication system. The aim of this paper is to use the pilot symbols and their optimum placements within the data for the channel estimation of the GFDM system. It is shown that the optimum arrangement of the pilot symbols is to place them uniformly on equal intervals within the data and to cluster them in the middle of the data.
© The Authors, published by EDP Sciences, 2019
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