Paper Info
Title
IQ Symbols Processing Schemes With LSTMs in OFDM System
Abstract
IQ modulation enjoys great popularity in wireless communication. Its main advantage is the symmetric convenience of combining independent signal components into a single composite signals in the transmitter. And it splits the composite signal into its independent components in the receiver. However, due to the limitations of communication facilities and imperfect channel environments, the symbols will be distorted. In this paper, we propose several signal processing schemes based on deep learning (DL) neural networks (i.e., long short-term memory (LSTM)) to process signal in an end-to-end manner, known as DLA, EDLA and PDNet. These schemes combine with advanced DL architectures and data-driven models for complex-valued signal processing. Enlightened by IQ demodulation ideas, we adopt LSTMs to develop several schemes to implement different functions (i.e., signal detection and peak to average power ratio (PAPR) reduction). The simulation results show that the schemes have significant performance improvement in bit error rate (BER) while reducing the probability of high PAPR.
Year
DOI
Venue
2022
10.1109/ACCESS.2022.3170410
IEEE ACCESS
Keywords
DocType
Volume
Modulation, Signal processing, Signal processing algorithms, Frequency modulation, Symbols, Computer architecture, Demodulation, IQ modulation, deep learning, ensemble networks, OFDM system
Journal
10
ISSN
Citations 
PageRank 
2169-3536
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
li jun19342.84
Tongliang Xin200.34
Bo He37713.20
Wenxin Li400.34