Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and Blockages
Millimeter-wave (mmWave) communication is one of the key enabling technologies for fifth generation (5G) mobile networks. In this paper, we study the problem of secure communication in a mmWave wiretap network, where directional beamforming and link blockages are taken into account. For the secure t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Entropy |
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| Online Access: | https://www.mdpi.com/1099-4300/21/4/427 |
| _version_ | 1798040270083719168 |
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| author | Yi Song Weiwei Yang Zhongwu Xiang Yiliang Liu Yueming Cai |
| author_facet | Yi Song Weiwei Yang Zhongwu Xiang Yiliang Liu Yueming Cai |
| author_sort | Yi Song |
| collection | DOAJ |
| description | Millimeter-wave (mmWave) communication is one of the key enabling technologies for fifth generation (5G) mobile networks. In this paper, we study the problem of secure communication in a mmWave wiretap network, where directional beamforming and link blockages are taken into account. For the secure transmission in the presence of spatially random eavesdroppers, an adaptive transmission scheme is adopted, for which sector secrecy guard zone and artificial noise (AN) are employed to enhance secrecy performance. When there exists no eavesdroppers within the sector secrecy guard zone, the transmitter only transmits information-bearing signal, and, conversely, AN along with information-bearing signal are transmitted. The closed-form expressions for secrecy outage probability (SOP), connection outage probability (COP) and secrecy throughput are derived under stochastic geometry. Then, we evaluate the effect of the sector secrecy guard zone and AN on the secrecy performance. Our results reveal that the application of the sector secrecy guard zone and AN can significantly improve the security of the system, and blockages also can be utilized to improve secrecy performance. An easy choice of transmit power and power allocation factor is provided for achieving higher secrecy throughput. Furthermore, increasing the density of eavesdroppers not always deteriorates the secrecy performance due to the use of the sector secrecy guard zone and AN. |
| first_indexed | 2024-04-11T22:05:09Z |
| format | Article |
| id | doaj.art-62e0764e5edb42949c1768cc2e83327b |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-11T22:05:09Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-62e0764e5edb42949c1768cc2e83327b2022-12-22T04:00:44ZengMDPI AGEntropy1099-43002019-04-0121442710.3390/e21040427e21040427Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and BlockagesYi Song0Weiwei Yang1Zhongwu Xiang2Yiliang Liu3Yueming Cai4College of Communications Engineering, Army Engineering University of PLA, No. 88 Houbiaoying, Qinhuai District, Nanjing 210007, ChinaCollege of Communications Engineering, Army Engineering University of PLA, No. 88 Houbiaoying, Qinhuai District, Nanjing 210007, ChinaCollege of Communications Engineering, Army Engineering University of PLA, No. 88 Houbiaoying, Qinhuai District, Nanjing 210007, ChinaCommunications Research Center, Harbin Institute of Technology, Harbin 150001, ChinaCollege of Communications Engineering, Army Engineering University of PLA, No. 88 Houbiaoying, Qinhuai District, Nanjing 210007, ChinaMillimeter-wave (mmWave) communication is one of the key enabling technologies for fifth generation (5G) mobile networks. In this paper, we study the problem of secure communication in a mmWave wiretap network, where directional beamforming and link blockages are taken into account. For the secure transmission in the presence of spatially random eavesdroppers, an adaptive transmission scheme is adopted, for which sector secrecy guard zone and artificial noise (AN) are employed to enhance secrecy performance. When there exists no eavesdroppers within the sector secrecy guard zone, the transmitter only transmits information-bearing signal, and, conversely, AN along with information-bearing signal are transmitted. The closed-form expressions for secrecy outage probability (SOP), connection outage probability (COP) and secrecy throughput are derived under stochastic geometry. Then, we evaluate the effect of the sector secrecy guard zone and AN on the secrecy performance. Our results reveal that the application of the sector secrecy guard zone and AN can significantly improve the security of the system, and blockages also can be utilized to improve secrecy performance. An easy choice of transmit power and power allocation factor is provided for achieving higher secrecy throughput. Furthermore, increasing the density of eavesdroppers not always deteriorates the secrecy performance due to the use of the sector secrecy guard zone and AN.https://www.mdpi.com/1099-4300/21/4/427physical layer securitymillimeter wavesector secrecy guard zoneartificial noise |
| spellingShingle | Yi Song Weiwei Yang Zhongwu Xiang Yiliang Liu Yueming Cai Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and Blockages Entropy physical layer security millimeter wave sector secrecy guard zone artificial noise |
| title | Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and Blockages |
| title_full | Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and Blockages |
| title_fullStr | Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and Blockages |
| title_full_unstemmed | Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and Blockages |
| title_short | Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and Blockages |
| title_sort | secure transmission in mmwave wiretap channels on sector guard zone and blockages |
| topic | physical layer security millimeter wave sector secrecy guard zone artificial noise |
| url | https://www.mdpi.com/1099-4300/21/4/427 |
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