DNF-SC-PNC: a new physical-layer network coding scheme for two-way relay channels with asymmetric data length

To improve the bit error rate (BER) performance of physical-layer network coding (PNC) in data length asymmetric two-way relay channels (TWRC), a new PNC scheme named combined denoise-and-forward and superposition coded physical-layer network coding (DNF-SC-PNC) is proposed, and the decoding algorit...

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Vydáno v:Wireless networks Ročník 25; číslo 7; s. 3727 - 3734
Hlavní autoři: Yang, Hongjuan, Li, Bo, Liu, Gongliang, Liu, Xin, Peng, Xiyuan
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York Springer US 01.10.2019
Springer Nature B.V
Témata:
Algorithms
Asymmetry
Bit error rate
Channels
Codes
Coding
Communications Engineering
Computer Communication Networks
Computer simulation
Decoding
Electrical Engineering
Engineering
IT in Business
Networks
Noise reduction
Relay
Superposition (mathematics)
Wireless networks
SIC algorithm
LLR algorithm
Physical-layer network coding
Asymmetric data length
ISSN:1022-0038, 1572-8196
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Shrnutí:To improve the bit error rate (BER) performance of physical-layer network coding (PNC) in data length asymmetric two-way relay channels (TWRC), a new PNC scheme named combined denoise-and-forward and superposition coded physical-layer network coding (DNF-SC-PNC) is proposed, and the decoding algorithm of the scheme is improved. In the new scheme, the mixed information is denoised and superposed at the relay node, which will be broadcasted to the destination nodes. The destination nodes can use successive interference cancellation (SIC) or likelihood rate (LLR) algorithm for decoding. Theoretical analysis and simulation results show that DNF-SC-PNC can provide better BER performance and better throughput rate performance when the data length is asymmetric. Furthermore, we also proved that LLR algorithm can provide better performance than SIC algorithm in data length asymmetric TWRC.
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ISSN:1022-0038
1572-8196
DOI:10.1007/s11276-018-1659-6