Author
Aghdam, Mohammad Reza Ghavidel, Mozaffari Tazehkand, B., Abdolee, R.
Publication Date
2024-04
Publication Place
-
Elsevier
Subject
BER, Future generations, GFDM, Optimal prototype filter
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1874-4907
Record ID
8a1ced77-4057-4ce4-b8c6-49cdfa801e2f
Library Location
Electrical & Electronics Engineering
Date
2024-04
Sample Text
Prototype filter design is a critical challenge in generalized frequency division multiplexing (GFDM) systems. Poorly designed filters can result in inherent and out-of-band (OOB) interferences, severely impacting system performance. This paper proposes a novel solution to this problem by introducing an optimal prototype filter that mitigates the adverse effects of intrinsic interferences in GFDM systems. Our approach involves using a complex-valued prototype filter, which resembles a single-sideband (SSB) modulation scheme and significantly enhances bandwidth efficiency compared to conventional GFDM. To design the optimal filter, we formulate an optimization problem that eliminates inband and adjacent subcarriers intrinsic interferences. We also provide analytical expressions for evaluating the system's bit error rate (BER) and demonstrate the superiority of our optimized prototype filter over its current counterparts. To validate the design of the proposed prototype filter, we assess the noise enhancement factor (NEF). Our results indicate that our proposed filter improves system performance and reduces BER in GFDM systems.
DOI
10.1016/j.phycom.2023.102258
Cilt
63
