SIC-Based Secrecy Performance in Uplink NOMA Multi-Eavesdropper Wiretap Channels
A new paradigm of uplink non-orthogonal multiple access along with multiple eavesdroppers to achieve secrecy transmission is studied in this paper. We investigate the secrecy performance of a single transmitter in both non-colluding- and colluding-eavesdropper scenarios on basis of two decoding meth...
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| Format: | Article |
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IEEE
2018-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8331083/ |
| _version_ | 1819162776530059264 |
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| author | Kaiwei Jiang Tao Jing Yan Huo Fan Zhang Zhen Li |
| author_facet | Kaiwei Jiang Tao Jing Yan Huo Fan Zhang Zhen Li |
| author_sort | Kaiwei Jiang |
| collection | DOAJ |
| description | A new paradigm of uplink non-orthogonal multiple access along with multiple eavesdroppers to achieve secrecy transmission is studied in this paper. We investigate the secrecy performance of a single transmitter in both non-colluding- and colluding-eavesdropper scenarios on basis of two decoding methods at the legitimate receiver, zero-forcing (ZF), and minimum mean-square error (MMSE), jointly with successive interference cancellation (SIC). We first evaluate the secrecy performance in three metrics: secrecy outage probability, effective secrecy throughput (EST), and positive secrecy capacity probability. Analytical results show: 1) the collusion of eavesdroppers deteriorates the secrecy performance, which is an affine combination of those regarding each single eavesdropper and 2) MMSE-SIC outperforms ZF-SIC, while the performance gap can be overcome via reducing the number of interferers, or increasing signal-to-noise ratio (SNR), or enhancing the spatial diversity gain. We then analyze the asymptotic behaviors of the secrecy performance, revealing the high-SNR secrecy performance for both ZF-SIC and MMSE-SIC approaches to the same result which is location-dependent only. Furthermore, we study the problem of optimal power allocation to each transmitter subject to limited total transmit power. An interesting solution to this problem is demonstrated with the aid of numerical results. Finally, we propose an SIC order scheduling scheme which is conjectured to be optimal in achieving total maximum EST in a high SNR regime. |
| first_indexed | 2024-12-22T17:33:37Z |
| format | Article |
| id | doaj.art-32533c8365ff44d68067198fb073b175 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-22T17:33:37Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-32533c8365ff44d68067198fb073b1752022-12-21T18:18:34ZengIEEEIEEE Access2169-35362018-01-016196641968010.1109/ACCESS.2018.28230038331083SIC-Based Secrecy Performance in Uplink NOMA Multi-Eavesdropper Wiretap ChannelsKaiwei Jiang0https://orcid.org/0000-0002-8377-5607Tao Jing1Yan Huo2https://orcid.org/0000-0003-0647-1009Fan Zhang3https://orcid.org/0000-0002-7737-2254Zhen Li4School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, ChinaA new paradigm of uplink non-orthogonal multiple access along with multiple eavesdroppers to achieve secrecy transmission is studied in this paper. We investigate the secrecy performance of a single transmitter in both non-colluding- and colluding-eavesdropper scenarios on basis of two decoding methods at the legitimate receiver, zero-forcing (ZF), and minimum mean-square error (MMSE), jointly with successive interference cancellation (SIC). We first evaluate the secrecy performance in three metrics: secrecy outage probability, effective secrecy throughput (EST), and positive secrecy capacity probability. Analytical results show: 1) the collusion of eavesdroppers deteriorates the secrecy performance, which is an affine combination of those regarding each single eavesdropper and 2) MMSE-SIC outperforms ZF-SIC, while the performance gap can be overcome via reducing the number of interferers, or increasing signal-to-noise ratio (SNR), or enhancing the spatial diversity gain. We then analyze the asymptotic behaviors of the secrecy performance, revealing the high-SNR secrecy performance for both ZF-SIC and MMSE-SIC approaches to the same result which is location-dependent only. Furthermore, we study the problem of optimal power allocation to each transmitter subject to limited total transmit power. An interesting solution to this problem is demonstrated with the aid of numerical results. Finally, we propose an SIC order scheduling scheme which is conjectured to be optimal in achieving total maximum EST in a high SNR regime.https://ieeexplore.ieee.org/document/8331083/Non-orthogonal multiple access (NOMA)wiretap channelzero-forcing (ZF)minimum mean-square error (MMSE)successive interference cancellation (SIC)colluding eavesdroppers |
| spellingShingle | Kaiwei Jiang Tao Jing Yan Huo Fan Zhang Zhen Li SIC-Based Secrecy Performance in Uplink NOMA Multi-Eavesdropper Wiretap Channels IEEE Access Non-orthogonal multiple access (NOMA) wiretap channel zero-forcing (ZF) minimum mean-square error (MMSE) successive interference cancellation (SIC) colluding eavesdroppers |
| title | SIC-Based Secrecy Performance in Uplink NOMA Multi-Eavesdropper Wiretap Channels |
| title_full | SIC-Based Secrecy Performance in Uplink NOMA Multi-Eavesdropper Wiretap Channels |
| title_fullStr | SIC-Based Secrecy Performance in Uplink NOMA Multi-Eavesdropper Wiretap Channels |
| title_full_unstemmed | SIC-Based Secrecy Performance in Uplink NOMA Multi-Eavesdropper Wiretap Channels |
| title_short | SIC-Based Secrecy Performance in Uplink NOMA Multi-Eavesdropper Wiretap Channels |
| title_sort | sic based secrecy performance in uplink noma multi eavesdropper wiretap channels |
| topic | Non-orthogonal multiple access (NOMA) wiretap channel zero-forcing (ZF) minimum mean-square error (MMSE) successive interference cancellation (SIC) colluding eavesdroppers |
| url | https://ieeexplore.ieee.org/document/8331083/ |
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