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http://hdl.handle.net/10397/726
Title: | A multiple access scheme for chaos-based digital communication systems utilizing transmitted reference | Authors: | Tam, WM Lau, FCM Tse, CKM |
Issue Date: | Sep-2004 | Source: | IEEE transactions on circuits and systems. I, Regular papers, Sept. 2004, v. 51, no. 9, p. 1868-1878 | Abstract: | In this paper, a multiple access (MA) technique is proposed for chaos-based communication systems, in which chaotic reference signals are transmitted followed by the information-bearing signals. Chaotic reference signals modulated by a binary training sequence are sent periodically. The same chaotic signals are then modulated by the binary data and transmitted. To achieve MA, different chaotic signals and training sequences are assigned to different users. Two types of receivers are proposed. For the first one, an adaptive filter is employed which aims to reduce the inter-user interference. For the second receiver type, a simple inverse-and-average method is used in an attempt to recover the chaotic reference signal, which is then used to correlate with the information-bearing signals for determining the received symbols. The performance bounds of these two schemes are also derived. Finally, the bit error rates of the proposed system are simulated and compared. | Keywords: | Adaptive filter Bit error rates (BERs) Chaos communications Multiple access (MA) Noncoherent detection Walsh codes |
Publisher: | Institute of Electrical and Electronics Engineers | Journal: | IEEE transactions on circuits and systems. I, Regular papers | ISSN: | 1549-8328 | EISSN: | 1558-0806 | DOI: | 10.1109/TCSI.2004.834497 | Rights: | © 2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holders. |
Appears in Collections: | Journal/Magazine Article |
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