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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yuu-Seng Lau Lin, K.H. Hussain, Z.M. |
| Copyright Year | 2005 |
| Description | Author affiliation: Sch. of Electr. & Comput. Eng., RMIT Univ., Melbourne, VIC (Yuu-Seng Lau; Lin, K.H.; Hussain, Z.M.) |
| Abstract | It is shown that the use of chaos shift keying (CSK) with a transmit diversity technique such as beamforming and space-time coding can provide a secure communication link with improvement in the system error performance. Spreading sequences that are used to scramble data in spread spectrum (SS) systems can be generated using a single mathematical relationship of a chaotic generator. These chaotic sequences are very difficult to predict over long-term chaotic pattern unless the exact initial condition of the chaotic generator is known, providing security. On the other hand, beamforming and orthogonal space-time block coding (OSTBC) transmit diversity techniques are known to provide optimal transmitting structures for communication systems, especially if combined. Based on the signal angle-of- arrival (AoA) estimates, the channel correlation matrix can be constructed, and it is shown that signal transmission of OSTBC codes in the eigen-modes of this matrix gives an effective array weighting gain which improves system error performance without sacrificing any diversity and coding gain. A performance study of CSK with beamforming and space-time encoded is carried out in this paper. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 141734 |
| Page Count | 5 |
| File Format | |
| ISBN | 0780393112 |
| DOI | 10.1109/TENCON.2005.301120 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-11-21 |
| Publisher Place | Australia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Chaotic communication Array signal processing Chaos Communication system security Spread spectrum communication Performance gain Transmitters Australia Computer errors Data security |
| Content Type | Text |
| Resource Type | Article |
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