On Linear Physical-Layer Network Coding with Non-Identical Modulation
Physical-layer network coding (PNC) is able to boost the error probability performance or throughput of a set of multi-source and multi-hop wireless networks. In this paper, we put forth a new asymmetric linear PNC (A-LPNC) scheme for the setup where the users are subject to non-identical power and...
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| Vydané v: | IEEE Wireless Communications and Networking Conference : [proceedings] : WCNC s. 1 - 7 |
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| Jazyk: | English |
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29.03.2021
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| ISSN: | 1558-2612 |
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| Abstract | Physical-layer network coding (PNC) is able to boost the error probability performance or throughput of a set of multi-source and multi-hop wireless networks. In this paper, we put forth a new asymmetric linear PNC (A-LPNC) scheme for the setup where the users are subject to non-identical power and modulation schemes. For deterministic channel, we show that given any unequal average symbol energy, the effective minimum distance of A-LPNC constellation can be made to be identical to the single-user minimum distance lower bound, translated into optimal error probability performance at a medium to high SNR. For fading channels, 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 | Physical-layer network coding (PNC) is able to boost the error probability performance or throughput of a set of multi-source and multi-hop wireless networks. In this paper, we put forth a new asymmetric linear PNC (A-LPNC) scheme for the setup where the users are subject to non-identical power and modulation schemes. For deterministic channel, we show that given any unequal average symbol energy, the effective minimum distance of A-LPNC constellation can be made to be identical to the single-user minimum distance lower bound, translated into optimal error probability performance at a medium to high SNR. For fading channels, 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 |
| Author_xml | – sequence: 1 givenname: Qiuzhuo surname: Chen fullname: Chen, Qiuzhuo email: chenqiuzhuo@buaa.edu.cn organization: Beihang University,School of Electronics Information Engineering,Beijing,China,100191 – sequence: 2 givenname: Tao surname: Yang fullname: Yang, Tao email: tyang@buaa.edu.cn organization: Beihang University,School of Electronics Information Engineering,Beijing,China,100191 |
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| Snippet | Physical-layer network coding (PNC) is able to boost the error probability performance or throughput of a set of multi-source and multi-hop wireless networks.... |
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| SubjectTerms | compute-and-forward distance spectrum Error probability Fading channels Modulation Physical-layer network coding Simulation Spread spectrum communication Transmitters Wireless networks |
| Title | On Linear Physical-Layer Network Coding with Non-Identical Modulation |
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