A Bandwidth Efficient Modulation Scheme Using Quasi-Orthogonal Sequences 


Vol. 27,  No. 11, pp. 1163-1168, Nov.  2002


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  Abstract

A novel modulation scheme using quaternary quasi-orthogonal sequences[1] as M-ary modulation symbols is proposed.The controlled quasi-orthogonality between the modulation symbols allows us to increase the bandwidth efficiency with little or no degradation in the required signal-to-noise ratio per bit to achieve a given error probability compared to orthogonal modulation. An Efficient hard ware structure for demodulator using fast Walsh transforms is also presented.

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  Cite this article

[IEEE Style]

Y. Kim, K. Cheun, K. Yang, "A Bandwidth Efficient Modulation Scheme Using Quasi-Orthogonal Sequences," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 11, pp. 1163-1168, 2002. DOI: .

[ACM Style]

Youhan Kim, KyungWhoon Cheun, and Kyeongcheol Yang. 2002. A Bandwidth Efficient Modulation Scheme Using Quasi-Orthogonal Sequences. The Journal of Korean Institute of Communications and Information Sciences, 27, 11, (2002), 1163-1168. DOI: .

[KICS Style]

Youhan Kim, KyungWhoon Cheun, Kyeongcheol Yang, "A Bandwidth Efficient Modulation Scheme Using Quasi-Orthogonal Sequences," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 11, pp. 1163-1168, 11. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880