Achieving secrecy capacity of MISO fading wiretap channels with artificial noise
Physical layer security in wireless networks has received increasing attention in recent years. In this paper, we consider multiple-input single-output (MISO) fading wiretap channels, where the transmitter utilizes artificial noise-aided precoding (ANaP) transmission strategy to maximize the secrecy...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/97749 http://hdl.handle.net/10220/17544 |
| _version_ | 1826112736639057920 |
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| author | Xiong, Qi Gong, Yi Liang, Ying-Chang |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Xiong, Qi Gong, Yi Liang, Ying-Chang |
| author_sort | Xiong, Qi |
| collection | NTU |
| description | Physical layer security in wireless networks has received increasing attention in recent years. In this paper, we consider multiple-input single-output (MISO) fading wiretap channels, where the transmitter utilizes artificial noise-aided precoding (ANaP) transmission strategy to maximize the secrecy capacity of the channel. When the channel state information (CSI) of Eavesdropper's (Eve's) channel is known at Alice, we prove that the optimal ANaP strategy reduces to the conventional precoding strategy, i.e., all the transmit power should be allocated to the precoding of information signal. When the CSI of Eve's channel is unknown at Alice, we find that there exists an optimal power allocation ratio between the information signal and the artificial noise and that this power ratio depends on the number of antennas as well as the available transmit power at Alice. In particular, when the available transmit power at Alice increases or the number of antennas at Alice decreases, more power should be allocated to the artificial noise. |
| first_indexed | 2024-10-01T03:12:00Z |
| format | Conference Paper |
| id | ntu-10356/97749 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:12:00Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/977492020-03-07T13:24:48Z Achieving secrecy capacity of MISO fading wiretap channels with artificial noise Xiong, Qi Gong, Yi Liang, Ying-Chang School of Electrical and Electronic Engineering IEEE Wireless Communications and Networking Conference (2013 : Shanghai, China) DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems Physical layer security in wireless networks has received increasing attention in recent years. In this paper, we consider multiple-input single-output (MISO) fading wiretap channels, where the transmitter utilizes artificial noise-aided precoding (ANaP) transmission strategy to maximize the secrecy capacity of the channel. When the channel state information (CSI) of Eavesdropper's (Eve's) channel is known at Alice, we prove that the optimal ANaP strategy reduces to the conventional precoding strategy, i.e., all the transmit power should be allocated to the precoding of information signal. When the CSI of Eve's channel is unknown at Alice, we find that there exists an optimal power allocation ratio between the information signal and the artificial noise and that this power ratio depends on the number of antennas as well as the available transmit power at Alice. In particular, when the available transmit power at Alice increases or the number of antennas at Alice decreases, more power should be allocated to the artificial noise. 2013-11-08T08:42:36Z 2019-12-06T19:46:05Z 2013-11-08T08:42:36Z 2019-12-06T19:46:05Z 2013 2013 Conference Paper Xiong, Q., Gong, Y., & Liang, Y. C. (2013). Achieving secrecy capacity of MISO fading wiretap channels with artificial noise. 2013 IEEE Wireless Communications and Networking Conference (WCNC), pp.2452-2456. https://hdl.handle.net/10356/97749 http://hdl.handle.net/10220/17544 10.1109/WCNC.2013.6554945 en © 2013 IEEE |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems Xiong, Qi Gong, Yi Liang, Ying-Chang Achieving secrecy capacity of MISO fading wiretap channels with artificial noise |
| title | Achieving secrecy capacity of MISO fading wiretap channels with artificial noise |
| title_full | Achieving secrecy capacity of MISO fading wiretap channels with artificial noise |
| title_fullStr | Achieving secrecy capacity of MISO fading wiretap channels with artificial noise |
| title_full_unstemmed | Achieving secrecy capacity of MISO fading wiretap channels with artificial noise |
| title_short | Achieving secrecy capacity of MISO fading wiretap channels with artificial noise |
| title_sort | achieving secrecy capacity of miso fading wiretap channels with artificial noise |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems |
| url | https://hdl.handle.net/10356/97749 http://hdl.handle.net/10220/17544 |
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