A Real Orthogonal Space-Time Coded UWB Scheme for Wireless Secure Communications
<p/> <p>Recent research reveals that information security and information-hiding capabilities can be enhanced by proper exploitation of space-time techniques. Meanwhile, intrinsic properties of ultra-wideband (UWB) signals make it an outstanding candidate for secure applications. In this...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2009-01-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
| Online Access: | http://jwcn.eurasipjournals.com/content/2009/571903 |
| _version_ | 1819041111589519360 |
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| author | Zhang Yanbing Dai Huaiyu |
| author_facet | Zhang Yanbing Dai Huaiyu |
| author_sort | Zhang Yanbing |
| collection | DOAJ |
| description | <p/> <p>Recent research reveals that information security and information-hiding capabilities can be enhanced by proper exploitation of space-time techniques. Meanwhile, intrinsic properties of ultra-wideband (UWB) signals make it an outstanding candidate for secure applications. In this paper, we propose a space-time coding scheme for impulse radio UWB systems. A novel real orthogonal group code is designed for multi-antenna UWB signals to exploit the full spatial diversity gain and achieve the perfect communication secrecy. Its performance in a frequency-selective fading channel is analyzed. The transmission secrecy, including low probability of detection (LPD), low probability of intercept (LPI), and anti-jamming performance, is investigated, and some fundamental tradeoffs between these secrecy metrics are also addressed. A comparison of the proposed scheme with the direct sequence spread spectrum (DSSS) technique is carried out, which demonstrates that proper combination of UWB and space-time coding can provide substantial enhancement to wireless secure communications over other concurrent systems.</p> |
| first_indexed | 2024-12-21T09:19:48Z |
| format | Article |
| id | doaj.art-97d852f9565c4cbfbcfbc2c2e22aa85a |
| institution | Directory Open Access Journal |
| issn | 1687-1472 1687-1499 |
| language | English |
| last_indexed | 2024-12-21T09:19:48Z |
| publishDate | 2009-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Wireless Communications and Networking |
| spelling | doaj.art-97d852f9565c4cbfbcfbc2c2e22aa85a2022-12-21T19:09:02ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14721687-14992009-01-0120091571903A Real Orthogonal Space-Time Coded UWB Scheme for Wireless Secure CommunicationsZhang YanbingDai Huaiyu<p/> <p>Recent research reveals that information security and information-hiding capabilities can be enhanced by proper exploitation of space-time techniques. Meanwhile, intrinsic properties of ultra-wideband (UWB) signals make it an outstanding candidate for secure applications. In this paper, we propose a space-time coding scheme for impulse radio UWB systems. A novel real orthogonal group code is designed for multi-antenna UWB signals to exploit the full spatial diversity gain and achieve the perfect communication secrecy. Its performance in a frequency-selective fading channel is analyzed. The transmission secrecy, including low probability of detection (LPD), low probability of intercept (LPI), and anti-jamming performance, is investigated, and some fundamental tradeoffs between these secrecy metrics are also addressed. A comparison of the proposed scheme with the direct sequence spread spectrum (DSSS) technique is carried out, which demonstrates that proper combination of UWB and space-time coding can provide substantial enhancement to wireless secure communications over other concurrent systems.</p>http://jwcn.eurasipjournals.com/content/2009/571903 |
| spellingShingle | Zhang Yanbing Dai Huaiyu A Real Orthogonal Space-Time Coded UWB Scheme for Wireless Secure Communications EURASIP Journal on Wireless Communications and Networking |
| title | A Real Orthogonal Space-Time Coded UWB Scheme for Wireless Secure Communications |
| title_full | A Real Orthogonal Space-Time Coded UWB Scheme for Wireless Secure Communications |
| title_fullStr | A Real Orthogonal Space-Time Coded UWB Scheme for Wireless Secure Communications |
| title_full_unstemmed | A Real Orthogonal Space-Time Coded UWB Scheme for Wireless Secure Communications |
| title_short | A Real Orthogonal Space-Time Coded UWB Scheme for Wireless Secure Communications |
| title_sort | real orthogonal space time coded uwb scheme for wireless secure communications |
| url | http://jwcn.eurasipjournals.com/content/2009/571903 |
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