Hybrid TDMA and Bianry CDMA System 


Vol. 29,  No. 5, pp. 527-536, May  2004


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  Abstract

A novel hybrid multiple access system, TD-BCDMA, where Binary CDMA that maintains a constant amplitude by clipping the summation of input signals multiplied by the orthogonal codes is transmitted over a TDMA frame structure, was proposed. In every time slot of TDMA, binary CDMA modulated multiple channel signals are transmitted with the same waveform of TDMA. TD-BCDMA has all the advantages of TDMA. Flexible adjustment of the data transmission rate on demand is possible by adjusting the number of codes and time slots assigned to each user. This property was used to show an example of Ad Hoc network applications. To obtain a proper synchronization scheme for Td-BCDMA, the Receiver Operating Characteristics performance and the false alarm probability and false dismissal probability under various channel environment of two different schemes, a preamble scheme as in TDMA and a synchronization channel scheme as in CDMA were compared. It was proved that the preamble scheme is more practical and suitable than the synchronization channel scheme for the hybrid multiple access system.

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  Cite this article

[IEEE Style]

H. S. Ahn and S. Ra, "Hybrid TDMA and Bianry CDMA System," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 5, pp. 527-536, 2004. DOI: .

[ACM Style]

Ho Seong Ahn and Sung-Woong Ra. 2004. Hybrid TDMA and Bianry CDMA System. The Journal of Korean Institute of Communications and Information Sciences, 29, 5, (2004), 527-536. DOI: .

[KICS Style]

Ho Seong Ahn and Sung-Woong Ra, "Hybrid TDMA and Bianry CDMA System," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 5, pp. 527-536, 5. 2004.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880