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HARQ-Chaotic: Analog Chaotic Code Applied in HARQ Scheme of Wireless Communication System
Joint Authors
Yu, Wei
Zhu, Fusheng
Wu, Jun
Wang, Rui
Ren, Haoqi
Zhang, Zhifeng
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-24
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Information Technology and Computer Science
Abstract EN
This paper proposes a novel symbol-level combining hybrid automatic repeat request (HARQ) scheme based on analog chaotic code and named HARQ-Chaotic.
The transmitter of HARQ-Chaotic adopts analog chaotic code to encode Quadrature Amplitude Modulation (QAM) symbols of retransmission packets to combat fading and noise.
As the analog chaotic code can only handle sources with amplitudes in the range of [-0.5, 0.5], QAM symbols must be scaled into this range.
We derived the optimal scaling factor through theoretical analysis.
A joint algorithm combining with novel soft chaotic decoder and novel soft QAM demapper is proposed for the receiver to enhance the performance of the whole communication system.
We implemented HARQ-Chaotic with LDPC codes and 16-QAM/64-QAM to carry out simulations in both AWGN channels and multipath fading channels.
Massive simulation results demonstrate that the proposed HARQ-Chaotic has 1dB-4dB gain over traditional HARQ-Chase combining (HARQ-CC) scheme in block error rate (BLER) performance.
American Psychological Association (APA)
Yu, Wei& Zhu, Fusheng& Wu, Jun& Wang, Rui& Ren, Haoqi& Zhang, Zhifeng. 2019. HARQ-Chaotic: Analog Chaotic Code Applied in HARQ Scheme of Wireless Communication System. Wireless Communications and Mobile Computing،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1212099
Modern Language Association (MLA)
Yu, Wei…[et al.]. HARQ-Chaotic: Analog Chaotic Code Applied in HARQ Scheme of Wireless Communication System. Wireless Communications and Mobile Computing No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1212099
American Medical Association (AMA)
Yu, Wei& Zhu, Fusheng& Wu, Jun& Wang, Rui& Ren, Haoqi& Zhang, Zhifeng. HARQ-Chaotic: Analog Chaotic Code Applied in HARQ Scheme of Wireless Communication System. Wireless Communications and Mobile Computing. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1212099
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1212099