4L²-APSK Constellation Method and Its Error Probability Analysis 


Vol. 35,  No. 2, pp. 210-218, Feb.  2010


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  Abstract

In order to improve the efficiency of frequency bandwidth, various modulation methods such as QAM and PSK have been widely used, and their variation APSK(Amplitude Phase Shift Keying) type modulation methods were proposed and are being used in some satellite communication systems. In this paper, a new constellation method named as 4L²-APSK is proposed, which places symbol points circularly as the existing APSK constellations do, but has different number of points and different distance between adjacent points on each layer. An equation for error probability in AWGN channel is also induced for 4L²-APSK. In addition, a new Gaussian noise channel is proposed in which noise variances are in the amplitude and in the phase and the two are not equal, and a method of obtaining error probabilities in this channel is also suggested. The equations for error probabilities are verified by computer simulations, and error probabilities of 4L²-APSK and QAM are analyzed and compared in the AWGN channel and the proposed noise channel, respectively.

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  Cite this article

[IEEE Style]

Y. Nam, Y. H. Kim, T. Jang, "4L²-APSK Constellation Method and Its Error Probability Analysis," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 2, pp. 210-218, 2010. DOI: .

[ACM Style]

Young-woo Nam, Yong Hwan Kim, and Tae-Jeong Jang. 2010. 4L²-APSK Constellation Method and Its Error Probability Analysis. The Journal of Korean Institute of Communications and Information Sciences, 35, 2, (2010), 210-218. DOI: .

[KICS Style]

Young-woo Nam, Yong Hwan Kim, Tae-Jeong Jang, "4L²-APSK Constellation Method and Its Error Probability Analysis," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 2, pp. 210-218, 2. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880