Asymmetric Linear Physical-Layer Network Coding
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 co...
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| Vydáno v: | IEEE communications letters Ročník 25; číslo 10; s. 3214 - 3218 |
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01.10.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
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| Abstract | 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. |
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| AbstractList | 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. |
| Author | Chen, Qiuzhuo Yang, Tao Liu, Rongke |
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| Cites_doi | 10.1109/LCOMM.2012.050112.120520 10.1109/TWC.2015.2504471 10.1109/TIT.2016.2605121 10.1109/TWC.2012.092112.120345 10.1109/TCOMM.2013.012313.110631 10.1109/TWC.2013.010214.130692 10.1109/TCOMM.2012.010213.120265 10.1109/LWC.2018.2874052 10.1109/TWC.2015.2434874 10.1109/TCOMM.2014.2318052 |
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| Snippet | 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... |
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| SubjectTerms | Asymmetry Codes Coding compute-and-forward Constellations distance spectrum Error probability Fading channels Lower bounds Modulation Network coding Physical-layer network coding Receivers Signal to noise ratio Uplink |
| Title | Asymmetric Linear Physical-Layer Network Coding |
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