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Asymmetric Linear Physical-Layer Network Coding
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DOI：10.1109/LCOMM.2021.3091880.png)
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摘要
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In this letter, we put forth a new asymmetric linear PNC (A-LPNC) scheme for the setup where the users are subject to non-identical power constraints and modulation schemes. For deterministic channel, we show that given any pair of average symbol energies, the effective minimum distance of A-LPNC constellation can be made to be identical to the single-user minimum distance, translated into optimal error probability performance at a medium to high SNR. For fading channel, we show that the optimized network coding coefficients can be found and employed such that the effective minimum distance of A-LPNC is equal to the single-user minimum distance lower bound for integer channel gains. For real-valued channel gains, we present the optimal NC coefficients selection that minimizes the error probability of A-LPNC. These results are verified via simulations.
Keyword:
Error probability
Receivers
Modulation
Fading channels
Signal to noise ratio
Network coding
Uplink
Physical-layer network coding
compute-and-forward
modulation
distance spectrum
期刊
IF:
4.4
论文数:
1.3W
被引数:
2.2W
机构
引用论文
Design and Analysis of Multi-Level Physical-Layer Network Coding for Gaussian Two-Way Relay Channels
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