Generalized BER Performance Analysis for Uniform M-PSK with I/Q Phase Unbalance 


Vol. 31,  No. 3, pp. 237-244, Mar.  2006


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  Abstract

I/Q phase unbalance caused by non-ideal circuit components is inevitable physical phenomenons and leads to performance degradation when we implement a practical coherent M-ary phase shift keying(M-PSK) demodulator. In this paper, we present an exact and general expression involving two-dimensional Gaussian Q-functions for the bit error rate(BER) of uniform M-PSK with I/Q phase unbalance over an additive white Gaussian noise(AWGN) channel. First we derive a BER expression for the k-th bit of 8, 16-PSK signal constellations when Gray code bit mapping is employed. Then, from the derived k-th bit BER expression, we present the exact and general average BER expression for M-PSK with I/Q phase unbalance. This result can readily be applied to numerical evaluation for various cases of practical interest in an I/Q unbalanced M-PSK system, because the one- and twodimensional Gaussian Q-functions can be easily and directly computed using commonly available mathematical software tools.

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  Cite this article

[IEEE Style]

J. Lee, D. Yoon, K. Hyun, S. Park, "Generalized BER Performance Analysis for Uniform M-PSK with I/Q Phase Unbalance," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 3, pp. 237-244, 2006. DOI: .

[ACM Style]

Jaeyoon Lee, Dongweon Yoon, Kwangmin Hyun, and SangKyu Park. 2006. Generalized BER Performance Analysis for Uniform M-PSK with I/Q Phase Unbalance. The Journal of Korean Institute of Communications and Information Sciences, 31, 3, (2006), 237-244. DOI: .

[KICS Style]

Jaeyoon Lee, Dongweon Yoon, Kwangmin Hyun, SangKyu Park, "Generalized BER Performance Analysis for Uniform M-PSK with I/Q Phase Unbalance," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 3, pp. 237-244, 3. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880