Performance of Chaos-Based Communication Systems under the Influence of Coexisting Conventional Spread-Spectrum Systems
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 1475-1481 |
Journal / Publication | IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications |
Volume | 50 |
Issue number | 11 |
Publication status | Published - Nov 2003 |
Externally published | Yes |
Link(s)
Abstract
This brief studies the performance of selected chaos-based systems which share their frequency bands with conventional spread-spectrum systems. Such a scenario may occur in normal practice when chaos-based systems are introduced while the conventional systems are still in operation. The particular chaos-based systems under study are the coherent chaos-shift-keying system and the noncoherent differential chaos-shift-keying system, and the coexisting conventional system employs the standard direct-sequence spread-spectrum modulation scheme. Analytical expressions for the bit-error rates are derived in terms of system parameters such as spreading factor, chaotic signal power, conventional spread-spectrum signal power, and noise power spectral density. Finally, computer simulations are performed to verify the analytical findings.
Research Area(s)
- Chaos communication, Chaos shift keying (CSK), Coexistence, Differential chaos shift keying (DCSK), Differential sequence spread spectrum
Citation Format(s)
Performance of Chaos-Based Communication Systems under the Influence of Coexisting Conventional Spread-Spectrum Systems. / Lau, Francis C. M.; Tse, Chi K.
In: IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, Vol. 50, No. 11, 11.2003, p. 1475-1481.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review